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