Alien Breed 3: Descent Trophies
The Informed
Collect all logs through out the game.

Logs can be found throughout the games five single player levels. You start with 3 Logs, and you earn 2 automatically by playing through the story. As with the secrets, you can get these across multiple playthroughs. Logs do not show up in Free Play.

Locations are as follows:

Level 1 - Subversion

Larval Burst Youll come across this shortly after turning on the Fire Halon system to put out the fire that blocks your path. The Log will be in the same room where you fight your very first enemies in the game, the Larval Bursts.
Mauler After lowering down the water levels so you can run across this grating to continue, youll be required to shoot down a glass window to continue. Break it, kill the Maulers and Larvals that await you, and the Log will be sitting in this room.
Healer Shortly after powering down and overloading the Gyro, youll be tasked to go back to the Maintenance Core. Head on in to the next room and the Log will be on your right, whereas an Intext Terminal will on your right.
Corrupted Mia - Obtained automatically at the end of this level.

Level 2 - Re-entry

Ranged - Shortly after 1 minute forced battle and going across the fans, you'll enter some vents. Facing the boarded up wall with two electric currents in the room behind it, turn left to see some fire canisters that you can blow up. The Log is inside this tiny room. You'll face this boarded up wall again when you have to plant explosives on it to continue.
Screamer - After going through the first vacuum portion in this level you'll cross two bridges and enter a room with a power node in the middle and be required to activate some consoles to get a bridge up in order to progress further. The Log will be on your right, in the room directly across an Intex Terminal.
Boney Shield - After traversing through a second vacuum portion, you'll go up an elevator. Head into the bathroom on your left, and you'll see some fire canisters you can blow up again. The Log is inside this newly revealed tunnel

Level 3 - Determination

Webber - Right at the start, this Log is in the room to your right.
Wentworth, C. - After going through a long tunnel on the Cargo Platform, you'll go across a bridge and take an elevator down (which is destroyed shortly after) into some walkways submerged in water. This Log will be to your left, can't miss it.
Electro Shocker - Shortly after the previous Log, you will have to turn two valves to lower the water level to activate a console. A cutscene will ensure and you'll land right on top of this Log

Level 4 - Vengeance

Stunner - Near the very beginning, you'll go walk across some fallen platforms and eventually reach a dead end, where an elevator will shortly rise up for you to ride on. The Log is sitting right beside it, can't miss it.
Barnes, C. - This Log will be lying next to Barnes' body, shortly after you opened a door with a Key-Card . They will be in an open area to your left. Impossible to miss, since you'll have to use another Key-Card on a door next to him

Level 5 - Resolution

Klein, W. E. - At the very beginning, this Log will be directly behind you.
Alien Queen - Obtained automatically in the mid way through this level