Succeed all Level I challenges.
Win a match on each map for each game mode.
Reach the highest rank (Commander).
Finish the tutorial.
Kill multiple enemies with an explosive.
Purchase all Abilities equipment.
Purchase all equipment.
Be promoted to Lieutenant I.
Win a game on each map.
Kill an enemy through a wall.
Kill an enemy with a silencer.
Purchase all Scope equipment.
Succeed a Level III challenge.
Win a Contract match.
Win a game in each game mode.
Destroy an enemy explosive.
Purchase all Booby traps equipment.
Purchase all Projectiles equipment.
Win a Last Team Standing game.
Purchase all weapons.
Be promoted to Sergeant.
First weapons purchase.
Win a Capture the Flag game.
Finish off an enemy who has been stunned by a stun grenade.
Win a Free For All game.
Kill an enemy caught up in his grappling gear.
First use of a Drone.
Kill an enemy by sending his own grenade back to him.
First equipment purchase.
Kill an enemy and yourself with a grenade.
Kill an enemy with an explosive.
Win a Team Deathmatch.
Kill an enemy with a headshot.
Stab an enemy to death.
Stab an enemy in the back.
Succeed at all the challenges from level 3.
