Collect the Key card in Research without alerting anybody!
Score 1 kill each from a land, maritime and aerial vehicle.
Run over 5 enemies while driving a vehicle
Complete Treehouse without dying.
Complete Volcano Mission.
Kill the Traitor with a melee attack.
Defeat Krieger.
Complete Swamp Mission.
Kill Crowe with a headshot.
Complete Rebellion Mission.
Get a headshot kill from 500m.
Complete Steam Mission.
In Bunker, make the Mercs and the caged Trigens mingle with each other
Complete Pier Mission.
Fall over 150m and survive.
Do not die while Doyle hacks the entry gates.
Complete a level with full health and armor.
Complete Training mission.
Complete Dam level without equipping a weapon on person (mounted weapons are allowed).
Do not let Valerie die even once in Swamp.
Complete the game in Hard or Realistic difficulty.
