ITEMS you will need!(downloads available at bottom of post):
1) Horizon
2) Flash drive (or transfer cable)
3) Pre-modded Svg.



TEXT TUT:
1) First start a new campaign game, then save and quit, make sure it saved on your flash drive. (you can check on dashboard if not sure)
2) Now plug your usb into pc/laptop, open horizon, and click on games, and find your mw3 svg.


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3) now Drag it to the left into the grey box in horizon.
4) Now download a Pre-modded svg, and drag it into horizon also.
5) Horizon should now look like this:

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6) Now you need to take your original profile, device, and console id numbers, and put them into the modded svg, replacing the 0's.
7) Now rehash and resign your svg, (do 2-3 times to make sure it got rehashed and resigned.
8 ) Now delete your original svg off of your flashdrive, and click inject, and inject the modded svg that you just put your id's into, onto the flashdrive
9) Now close the device explorer, and plug USB back into the xbox, make sure you click on the flash drive as the device to play on, and then resume campaign.
10) now you can play the campaign with the mods, or save and quit and go to spec ops or survival. (make sure you sign out of live at this point, to lessen chance of getting banned, i played online tho and havnt been banned, not yet anyways).
11) Save and quit the campaign, and you can now go play solo modded spec ops or survival.
12) If you want to play online with a friend, he must have the same mods that you just got or it wont work.

Downloads

HORIZON: [ Register or Signin to view external links. ]
PRE-MODDED SVG 1: [ Register or Signin to view external links. ]
PRE-MODDED SVG 2: [ Register or Signin to view external links. ]

SVG #1: Enemy ragdoll jitter (when they get killed)
-FOV mod
-Increased health (somewhat like God Mode but you can still die)
-Pulsing dropped weapon icons and equipment crate names
-Updated Objective typewriter messege custom color (Survive.....)
-Sticky grenades [Frags, Stun, Flash, etc.] (will only stick to the ground)
-Big UAV compass
-Low glass-break gravity
-Custom messege after the loading bar disappears during the intro when "Resuming Game"
-Modded Perks (Super Steady Aim and Super Sleight of Hand)
-Reload, Low Ammo and No Ammo custom colors
-Low Helicopter Health ("Shoot Chopper Gunners Down Fast" Dvars)

SVG #2:
-Same as svg number 1, but comes with INSTANT ROUND SKIP for survival mode.




IMPORTANT things to remember!:
1) IF two player online, BOTH PLAYERS must use the SAME mods! or it will not work.
2) Make sure you select the flash drive when playing or it wont let u resume campaign!)

This tooks lots of time to make, so please Post Legit if this helped:)