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