Complete operation Rabid Animal in Normal mode
Complete operation Cold Blooded in Normal mode
Complete operation Black Plague in Normal mode
Complete operation Rabid Animal in Ironman mode
Complete operation Cold Blooded in Ironman mode
Complete operation Black Plague in Ironman mode
Complete operation Rabid Animal in Ironman mode, finishing as few as possible missions (only 3 missions before the final)
Complete operation Cold Blooded in Ironman mode, finishing as few as possible missions (only 3 missions before the final)
Complete operation Black Plague in Ironman mode, finishing as few as possible missions (only 3 missions before the final)
Complete the first mission
Buy any item at the store
Spend some gold to unlock any item
Complete difficult mission (4+ control points) using only melee combat
Successfully use 10 explosive devices in a single mission (grenades do not count)
Complete difficult mission (4+ control points) with a single fighter
Perform 12 headshots and gain hidden skill
Execute ambush 15 times and gain hidden skill
Get caught in a flashbang blast 10 times and gain hidden skill
Perform 20 punches and gain hidden skill
Get hit 15 times in melee combat and gain hidden skill
Throw hand grenades as far as you can and gain hidden skill
Use medical items 10 times and gain hidden skill
Get poisoned effect 10 times and gain hidden skill
Perform 15 weapon reloads and gain hidden skill (only applicable for weapons with mags or boxes)
Receive a total of 300 damage and gain hidden skill
Travel a total of 400 cells and gain hidden skill
Travel a total of 100 cells in sneak mode and gain hidden skill
Fire 100 rounds in a single mission
Throw 10 grenades in a single mission
Use 5 painkillers in a single mission
Complete the whole game in Marathon mode on Normal difficulty
Complete the whole game in Marathon mode on Ironman difficulty
Complete operation Crossfire in Normal mode
Complete operation Crossfire in Ironman mode
Complete operation Crossfire in Ironman mode, finishing as few as possible missions (only 3 missions before the final)