Defeat V
Neutralize an Adamant Knight
Beat the first level
Take longer than 20 seconds to beat the first level
Beat Chapter 1
Beat Chapter 2
Beat Chapter 3
Beat Chapter 4
Get all unlocks (Beat level 22)
Neutralize a Corner Holder
Neutralize a Shotgunner
Neutralize a Gunner
Neutralize a Stalker
Neutralize a Sniper
Fail to finish a mission during the winter chapters
Finish the final mission in the winter chapter