Full list of all 23 Iron Brigade achievements worth 250 gamerscore. It takes around 8-10 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 20 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 50 Gamerscore.
Killed an enemy with a ricochet sniper shot after 4 bounces.
Completed a mission while wearing the uniform of an elite PSI agent.
Earned a Gold Medal on every mission.
Earned a Silver Medal on every mission.
Earned a Bronze Medal on every mission.
Defeated 3500 Monovisions.
Completed a solo mission without firing a shot.
Earned $20,000 from mission completion rewards.
Collected 10,000 Scrap.
Completed 10 Missions with 2 or more players.
Destroyed 5 Enemies with a single explosion.
Defeated Vlad with 2 or more players.
Defeated Vlad.
Defeated the Guardian of the Southern Terminal with 2 or more players.
Defeated the Guardian of the Southern Terminal.
Completed a mission with 4 players.
Defeated the Northern Pylon with 2 or more players.
Defeated the Northern Pylon.
Purchased an item in the store.
Completed Mobile Trench training.
Completed wave 30 on Survival: Settlement.
Completed wave 20 on Survival: Swamp.
Defeated the Martian Bear.