Kill 5 enemies with one L.E.O. shoulder bash.
Kill an enemy by ramming them with the Inferno GX.
Kill 175 enemies while in the L.E.O. exoskeleton.
Find 200 piles of salvage.
Kill 100 enemies while in the Marauder Scout Walker.
Destroy 100 Pods while piloting the Mantis.
Gather 25,000 total salvage.
Buy out any one Upgrade ring.
Buy every Upgrade.
Kill 6 enemies in one use of Shockwave.
Kill 50 Shockwaved enemies before they hit the ground.
Send an enemy at least 30 meters with Impact.
Kill 5 enemies in one shot with Impact.
Keep Berserk active for at least 21 seconds in one use.
Finish at least one wave on each map in Infestation.
Use the Magnet Gun to fling debris BACK at a Tentacle.
Kill one of each enemy type with the Maul.
Send an enemy at least 50 meters with the Magnet Gun.
Fire an enemy into another enemy with the Magnet Gun.
Perform melee finishers on 25 Creepers (single player only).
Kill 2 other enemies with a single exploding Berserker.
Kill a Wraith before it re-stealths.
Perform Revival 25 times in Infestation.
Finish a 4 player Infestation game beyond wave 9 without anyone bleeding out.
Finish waves 1 through 10 on any map in Infestation.
Finish waves 1 through 20 on any map in Infestation.
Finish waves 1 through 30 on any map in Infestation.
Finish the Single Player game on Insane Difficulty.
Buy a Cheat.
Make an enemy kill themselves while shooting at your Shell.
Listen to 40 Audio Logs.
Clear a safe path to the Terraformer for Hale. (Downloadable Content)
Allow no Red Faction to survive your attacks on their mountain base. (Downloadable Content)
Reunite Sgt. Winters with the Red Faction. (Downloadable Content)
Rescue the pinned-down Red Faction soldiers. (Downloadable Content)
Wipe out the Cultist military camp. (Downloadable Content)
Get 20 kills with the Shard Cannon. (Downloadable Content)
Eliminate 10 enemies using one of their own turrets. (Downloadable Content)
End the three-way battle between yourself, the aliens, and the Cultists. (Downloadable Content)
Get 20 kills with the Sharpshooter. (Downloadable Content)
Kill Mallus. (Downloadable Content)
Gain entry into the Terraformer.
Remove the Seal.
Make it back to civilization.
Escort the convoy.
Destroy the Water Filtration Plant.
Make it to the surface.
Defend the Red Faction.
Destroy the Jamming Devices.
Defeat the Mantis.
Travel to the Marauder homelands.
Safely escort Winters through the depths.
Find out how to reach the lair.
Open up the secret entrance.
Make it through to the lair.
Defeat the source of it all.
Continue playing to unlock this secret achievement.
Finish the Single Player game on Hard Difficulty.
