	Joy of victory: First victory of the team.
	Zombie hunter: Kill 1000 zombies.
	Killer instinct: Kill 100 enemies.
	First step for ranker: Play game for 30 hours.
	Assassin: Kill 100 enemies with knife or blunt.
	Winning streak: 5 straight wins.
	Supporter: Assist 300 times.
	Sniper: Kill 100 enemies with a sniper rifle.
	Shooting master: Kill 100 enemies with a secondary weapon.
	Massacre: Kill 100 enemies with a hand grenade.
	Sharpshooter: Kill 100 enemies with Headshot.
	Team leader: 100 wins.

Mega Zombie