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1. Meritorious Achievement Star
Description: Complete all eight "Wargame" missions without any casualties.
Gamerscore Worth: 50G
How to Earn:
Finish all eight Wargame missions without letting one of your firing squad teammates die. If they get injured, do your best to medic them. You can medic them by pressing Y while over their body. If one dies, you might as well restart the mission. You should get this achievement the same time as the "Operation Blue Bird" achievement.

2. Gold Achievement Star
Description: Complete any six "Wargame" missions without any casualties.
Gamerscore Worth: 40G
How to Earn: See "Meritorious Achievement Star." You should get this achievement the same time as the "Operation Brown Bear" achievement.

3. Silver Achievement Star
Description: Complete any four "Wargame" missions without any casualties.
Gamerscore Worth: 30G
How to Earn: See "Meritorious Achievement Star." You should get this achievement at the same time as the "Operation Black Cat" achievement.

4. Bronze Achievement Star
Description: Complete any two "Wargame" missions without any casualties.
Gamerscore Worth: 20G
How to Earn: See "Meritorious Achievement Star." You should get this achievement at the same time as the "Operation Gray Wolf" achievement.

5. Operation Blue Bird
Description: Complete Sniper Role "Wargame" missions.
Gamerscore Worth: 15G
How to Earn: These are the last two Wargame missions available. Try beating these without any casualties and you'll get "Meritorious Achievement Star" at the same time.

6. Operation Brown Bear
Description: Complete Auto-Rifleman Role "Wargame" missions.
Gamerscore Worth: 15G
How to Earn: These are the 5th and 6th Wargame missions. Try beating these without any casualties and you'll get "Gold Achievement Star" at the same time.

7. Operation Black Cat
Description: Complete all Grenadier Role "Wargame" missions.
Gamerscore Worth: 15G
How to Earn: These are the 3rd and 4th Wargame missions. Try beating these without any casualties and you'll get "Silver Achievement Star" at the same time.

8. Operation Gray Wolf
Description: Complete all Rifleman Role "Wargame" missions.
Gamerscore Worth: 15G
How to Earn: These are the 1st and 2nd Wargame missions. Try beating these without any casualties and you'll get "Bronze Achievement Star" at the same time.

9. Distinguished Skill Citation
Description: Reach Professional level in any two skills.
Gamerscore Worth: 30G
How to Earn: For each Basic Combat Training, Wargames, and Co-op Multiplayer campaign mission, you will receive skill points toward your character. To edit your soldier's skills, you can select Basic Combat Training from the main menu, then press X to edit character, and then click Soldier Development. You will receive the maximum number of skill points for completing each mission on the Professional difficulty level. For this achievement, you will need a total of 144 skill points.

10. Meritorious Skill Citation
Description: Reach Professional level in any one skill.
Gamerscore Worth: 25G
How to Earn: See "Distinguished Skill Citation" for details on how to get more skill points. For this achievement, you will need a total of 72 skill points.

11. Gold Skill Citation
Description: Reach Skilled level in all skills.
Gamerscore Worth: 20G
How to Earn: See "Distinguished Skill Citation" for details on how to get more skill points. For this achievement, you will need a total of 180 skill points.

12. Silver Skill Citation
Description: Reach Skilled level in any three skills.
Gamerscore Worth: 15G
How to Earn: See "Distinguished Skill Citation" for details on how to get more skill points. For this achievement, you will need a total of 108 skill points.

13. Bronze Skill Citation
Description: Reach Skilled level in any one skill.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Skill Citation" for details on how to get more skill points. For this achievement, you will need a total of 36 skill points.

14. Distinguished Combat Service
Description: Win 250 missions (4+ players in game) acting in any Role.
Gamerscore Worth: 60G
How to Earn: The quickest way to do this is to create a player match, and create a private match.
Mode: Squad Engagement.
Type: Survival
Map: Any will do
Time: 5 minutes
Make sure you get at least 4 players in the game, and just have the opposite team blow themselves up and the game will be over. You should be able to get over 50 wins per hour using this method.

15. Meritorious Combat Service
Description: Win 150 missions (4+ players in game) acting in any Role.
Gamerscore Worth: 45G
How to Earn: See "Distinguished Combat Service."

16. Gold Combat Service
Description: Win 75 missions (4+ players in game) acting in any Role.
Gamerscore Worth: 35G
How to Earn: See "Distinguished Combat Service."

17. Silver Combat Service
Description: Win 25 missions (4+ players in game) acting in any Role.
Gamerscore Worth: 25G
How to Earn: See "Distinguished Combat Service."

18. Bronze Combat Service
Description: Win 10 missions (4+ players in game) acting in any Role.
Gamerscore Worth: 15G
How to Earn: See "Distinguished Combat Service."

19. Operation Gold Lion
Description: Win all missions (4+ players in game) of the Co-op Multiplayer campaign.
Gamerscore Worth: 30G
How to Earn: This achievement is glitchy, so read carefully. I highly recommend playing this with four gamertags who have never played any Co-op missions yet. If you do so, you should be guaranteed to get this achievement once completing all 8 missions. Note that you don't have to be alive at the end of the mission for it to count, just as long as one person finishes the mission. However, if you are trying to get this with someone who has already unlocked this achievement, there's a chance that the missions will stop counting for you as completed. To fix this, you need to have a gamertag who hasn't played any co-op missions host the games, and they should start counting again for you. You can check your status on this achievement by going to "Extras" on the main menu, then "Achievements."

19. Helo Hunter Award
Description: Destroy 50 Helicopters in multiplayer (4+ players in game).
Gamerscore Worth: 20G
How to Earn: The quickest way to do this is to create a player match, and create a private match.
Mode: Co-op Engagement
Type: Air Defense
Map: Desert Encampment
Time: 15 minutes
Make sure you get at least 4 players in the game, and just do your best to shoot down the helicopters. The M107 sniper (which you unlock by completing Blue Bird - S01 Wargame mission) takes down the choppers with 3-4 bullets. To use this gun, make sure someone else is team leader so you can switch guns. The machine gun also works efficiently. Chances are you won't defeat all 15 choppers without dying, but that's alright because all of them that you do take down will still count.

20. Tank Hunter Award
Description: Destroy 50 Ground Vehicles in multiplayer (4+ players in game).
Gamerscore Worth: 20G
How to Earn: Despite the achievement title, you just have to destroy 50 ground vehicles, not just tanks. The quickest way to do this is to do Co-op Campaign Mission 02. Equip yourself with one of the sniper rifles (preferably the M107.) When the mission starts, proceed left across the bridge, taking out as many enemies as you can with the sniper. Once you've eliminated most of the enemies in that area, you can use all of your grenades to blow up the various ground trucks/vehicles. You can also shoot vehicles to blow them up, too. Once you blow up all the vehicles in the area (approx. 5-6) you can quit out and restart mission and they'll still count.

Tip: Try getting your soldier's Physical Training level to "Skilled" or higher, so they can carry an extra hand grenade.

21. Indirect Fire Support Award
Description: Distinguished Leadership Award; 100 KIA's by Artillery Strikes in multiplayer (4+ players in game).
Gamerscore Worth: 20G
How to Earn: The quickest way to do this is to create a player match, and create a private match.
Mode: Co-op Sector
Type: Create Custom Type
Respawns: Infinite
Enemy Density: Infinite
Base Zones: 1
Zone Failure: 1 Zone
Enemy Difficulty: Novice
Map: MOUT
Time: 5 minutes
Make sure you are the team leader. Right when the game starts, press the Back button. Using your Left Joystick, move the indicator to the far left of the map and press the Right Joystick twice to zoom in. You should see the location "HW9401." Move your indicator right above the "H" and press A to place an artillery strike. After that, press the Back Button again to exit that screen and look at the number in the top right of your screen. You should see it rise from 0 to 20-30, depending on how many enemies you kill with that one strike. Wait one minute and you're able to use another strike, as long as your teammates are defending the zone. Place it in the same spot, and you should at least get 20 guys every time. You don't have to win the match in order for it to count.

Note: If the map "MOUT" isn't showing up for you, download it again off the main menu by pressing X for "Exclusive Map."

22. Distinguished Combat Medic
Description: Successfully perform First Aid upon teammates 250 times (4+ players in game).
Gamerscore Worth: 50G
How to Earn: The quickest way to do this is to create a player match, and create a private match.
Mode: Squad Engagement
Type: Create Custom Type
Respawns: Infinite
Victory: Time
Target: None
Map: MOUT
Time: 5 minutes
Click Server Options and set the Force Respawn Timer to 10 seconds and the Incapacitation Timer to 15 seconds. Ideally you want as many people on your team as possible. What you're going to do is throw a grenade to knock them down, then medic them by Y pressing while over their body. If possible, try to get one of your teammates that you're healing to be the team leader, so you can resupply off of them. When you run of grenades you can use your gun or have one of your teammates kill you so you can respawn with more grenades. If your teammates aren't playing, just kill yourself when you have one grenade left. Heal as many as you can in 5 minutes, and then just keep starting new games.

Tip: Try getting your soldier's Physical Training level to "Skilled" or higher, so they can carry an extra hand grenade.

23. Meritorious Combat Medic
Description: Successfully perform First Aid upon teammates 100 times (4+ players in game).
Gamerscore Worth: 40G
How to Earn: See "Distinguished Combat Medic."

24. Gold Combat Medic
Description: Successfully perform First Aid upon teammates 50 times (4+ players in game).
Gamerscore Worth: 30G
How to Earn: See "Distinguished Combat Medic."

25. Silver Combat Medic
Description: Successfully perform First Aid upon teammates 25 times (4+ players in game).
Gamerscore Worth: 20G
How to Earn: See "Distinguished Combat Medic."

26. Bronze Combat Medic
Description: Successfully perform First Aid upon teammates 10 times (4+ players in game).
Gamerscore Worth: 10G
How to Earn: See "Distinguished Combat Medic."

27. Distinguished Auto-Rifleman
Description: Win 25 missions (4+ players in game) as Auto-Rifleman.
Gamerscore Worth: 20G
How to Earn: Refer to "Distinguished Combat Service." When going towards your 250 total wins, just make sure you choose the M249 SAW or the M249 SAW RD as your weapon 25 times total.

28. Distinguished Grenadier
Description: Win 25 missions (4+ players in game) as Grenadier.
Gamerscore Worth: 20G
How to Earn: Refer to "Distinguished Combat Service." When going towards your 250 total wins, just make sure you choose the M16A4/M203 or the M16A4/M203 RD as your weapon 25 times total.

29. Distinguished Leadership
Description: Win 25 missions (4+ players in game) as Team Leader.
Gamerscore Worth: 20G
How to Earn: Refer to "Distinguished Combat Service." When going towards your 250 total wins, just make sure you choose the M4A1/ACOG or the M4A1 RD as your weapon 25 times. (Team leaders are indicated with a star by the weapon icon)

30. Distinguished Rifleman
Description: Win 25 missions (4+ players in game) as Rifleman.
Gamerscore Worth: 20G
How to Earn: Refer to "Distinguished Combat Service." When going towards your 250 total wins, just make sure you choose the M16A4 or the M16A4/ACOG as your weapon 25 times total.

31. Distinguished Sniper
Description: Win 25 missions (4+ players in game) as Sniper.
Gamerscore Worth: 20G
How to Earn: Refer to "Distinguished Combat Service." When going towards your 250 total wins, just make sure you choose the M24 or the M107 as your weapon 25 times total.

32. Meritorious Auto-Rifleman
Description: Win 10 missions (4+ players in game) as Auto-Rifleman.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Auto-Rifleman."

33. Meritorious Grenadier
Description: Win 10 missions (4+ players in game) as Grenadier.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Grenadier."

34. Meritorious Leadership
Description: Win 10 missions (4+ players in game) as Team Leader.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Leadership."

35. Meritorious Rifleman
Description: Win 10 missions (4+ players in game) as Rifleman.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Rifleman."

36. Meritorious Sniper
Description: Win 10 missions (4+ players in game) as Sniper.
Gamerscore Worth: 10G
How to Earn: See "Distinguished Sniper."

37. Combat Injury Star
Description: Win 25 missions (4 plus players in game) in which you were wounded at least once, but not killed.
Gamerscore Worth: 10G
How to Earn: This can be done in any Co-op game online. When the game starts, have a friend injure you and then heal you. After that, be careful not to die until that game is over. There is no definitive quickest way to get this. I would suggest getting as many as you can while doing your Co-op Campaign Missions, and then just do quick Co-op Engagement Encounter matches with the enemy infantry set on low. Make sure you win the game or else it won't count.

38. Golden Eagle
Description: Join a Unit (Clan) and win 10 missions (4+ players in game) as a Unit member.
Gamerscore Worth: 20G
How to Earn: From the main menu, select Multiplayer, then Xbox Live, then Manage Unit, then Create Unit. When ready, press Y to create it. Once created, you just have to win 10 missions total and it will unlock. Refer to "Distinguished Combat Service" to see how to get quick wins.

39. Pistolier Award (M9)
Description: Win 10 missions (4+ players in game) with an M9 accuracy of 80% or higher (15+ shots fired).
Gamerscore Worth: 20G
How to Earn: I recommend using the following settings for this achievement:
Mode: Co-op Engagement
Type: Create Custom Type
Respawns: Infinite
Enemy Infantry: On (Low)
Enemy Helicopters: Off
Enemy Difficulty: Novice
Map: Observatory
Time: 30 minutes
Pick any gun and start the game. When the game starts, hold the B button and select your pistol. You'll notice you'll have 15 bullets in your clip. Without reloading, shoot those 15 bullets at the various 20 targets you'll have, and hit them with at least 12 of the bullets. As long as you aim carefully (a lot of times the enemies will stand still for you) you shouldn't have a problem with this. Once you shoot at least 15 bullets, just kill off the rest of the enemies with your main gun and/or grenades. Make sure you win the mission or else it won't count.

Tip: Try getting your soldier's Marksmanship and Valor levels as high as possible when doing this to increase accuracy and reduce aim wobble.

40. Rifleman Award (M16A4 / M4A1)
Description: Win 10 missions (4+ players in game) with an M16A4/M4A1 accuracy of 80% or higher (30+ shots fired).
Gamerscore Worth: 20G
How to Earn: Refer to "Pistolier Award (M9)." Use the same settings, except make sure you choose the M16A4 or the M4A1 as your gun. You'll notice you'll have 30 bullets in your clip. Without reloading, shoot those 30 bullets at the various 20 targets you'll have, and hit them with at least 24 of the bullets. As long as you aim carefully (a lot of times the enemies will stand still for you) you shouldn't have a problem with this. Once you shoot at least 30 bullets, just kill off the rest of the enemies with your pistol and/or grenades. Make sure you win the mission or else it won't count.

Tip: Try getting your soldier's Marksmanship and Valor levels as high as possible when doing this to increase accuracy and reduce aim wobble.

41. Automatic Rifleman Award (M249)
Description: Win 10 missions (4+ players in game) where 30+ targets were suppressed with the M249.
Gamerscore Worth: 20G
How to Earn: To suppress an enemy doesn't mean to kill them; it means to make them go into a prone position. I recommend the following settings for this achievement:
Mode: Co-op Sector
Type: Create Custom Type
Respawns: Infinite
Enemy Density: Infinite
Base Zones: 1
Zone Failure: 1 Zone
Enemy Difficulty: Novice
Map: MOUT
Time: 5 minutes
This one is going to take good team work. Make sure you have one of the M249's selected as your weapon, and when the game starts, go toward the zone with the rest of your teammates. If you look straight ahead you should see a whole group of enemy troops. Just lay down the trigger on those guys, and by the time 5 minutes is up, you should have definitely suppressed 30 of them. It sounds easy, but your team has to win in order for it to count, so make sure while you're suppressing the enemies, you guys can successfully defend the zone. If for some reason you can't defend the zone and need an alternative method, use the settings I listed for the "Pistolier Award (M9)" achievement and set the Enemy Infantry to High. When locating targets, don't kill them right away, try shooting above their heads to suppress them. This will take a lot longer than the first method listed, but it's an option if needed.

42. Grenadier Award (M203)
Description: Neutralize 75 targets with M203 grenade launcher in multiplayer (4+ players in game).
Gamerscore Worth: 20G
How to Earn: Refer to "Automatic Rifleman Award (M249)." Use the same settings, except make sure you choose the M203 grenade launcher as your gun. Go to the zone and just start grenading the enemy groups. It shouldn't take you long to get this. Note that you don't have to win the game to get this achievement, unlike the other "Award" achievements.

43. Sniper Award (M24/M107)
Description: Win 10 missions (4+ players in game) with an M24/M107 accuracy of 80% or higher (10+ shots fired).
Gamerscore Worth: 20G
How to Earn: Refer to "Pistolier Award (M9)." Use the same settings, except make sure you choose the M24 or the M107 as your gun. You'll notice you'll have 10 bullets in your clip. Without reloading, shoot those 10 bullets at the various 20 targets you'll have, and hit them with at least 8 of the bullets. As long as you aim carefully (a lot of times the enemies will stand still for you) you shouldn't have a problem with this. Once you shoot at least 10 bullets, just kill off the rest of the enemies with your pistol and/or grenades. Make sure you win the mission or else it won't count.

Tip: Try getting your soldier's Marksmanship and Valor levels as high as possible when doing this to increase accuracy and reduce aim wobble.

- You MUST HAVE four or more players in games for EVERY multiplayer achievement, or else it won't count.

- You can check your status on every single achievement by going to "Extras" on the main menu, then "Achievements."

- I highly recommend playing through all of the Wargame missions first to unlock all of the weapons. It will make a lot of the online achievements easier if you're using the better guns.

- If you're the team leader, you can't choose different kinds of weapons. To make someone else team leader, they need to press the Left Bumper button, and then you can change your weapons by pressing the Right Bumber button.