Kill 250000 zombies

Get Fire Team, Mirror Image and Wild Bunch, then get a ghost pickup

Get Stronghold, Regeneration, Armor, Counterblow, Aftershock then survive 10 minutes

Get Shrapnel and Remote Detonator then use 10 grenades in one game

Get Shrapnel and Midair Trigger then get 500 kills with the grenade launcher

Get Friendly Fire, Mano a Mano and Boss Power then kill 5 bosses in one game

Get Dexterity, Intensity, Accuracy, Heavy Ammo, Improved Loadout then get 1000 kills

Get at least one kill with ten non-melee weapon in one game

Survive for 10 attack waves in Barricade Mode

Survive for 15 attack waves in Barricade Mode

Survive for three attack waves in Barricade Mode without moving

Kill 5 female zombies in one streak without killing a single male

Get ghosts to kill 25 zombies in one streak while killing none yourself

Pick up health then survive 25 seconds in Free Play without damage or firing a single shot

Decapitate 100 Big Boy zombies in a single game

Survive 5 waves in Single Player Warehouse Barricade without the lower sentries firing a single shot

Kill 25 Bombers with a Steam Hammer in one game while staying outside their explosion range

Pick up Friendly Fire and use a Zombie Bomber's explosion to kill two more nearby bombers

In one game dive jump through 10 Zombie Bombers causing them to detonate themselves

Get hurt by and survive 10 Zombie Bomber explosions in one game

Pick up 250 powerups or items in one game

Survive for 15 minutes in a Free Play or Barricade game by only picking one perk and one new weapon

Kill 1,000,000 zombies

Bring yourself back to full health after nearly dying with Last Breath