Nation Red achievements

20.36%

TeleFrag

Perform 20 remote grenade detonations

20.87%

Machinist

In an On-line Coop game, upgrade a sentry gun to a weapon station

21.37%

Defused

Kill 3 grenade bosses in one barricade game within the first 20 waves

22.90%

Chain Reaction

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

24.94%

Free Man

Finish off a boss zombie with the crowbar

24.94%

LockDown

Reach wave 2 in warehouse barricade without any zombie breaching the fence perimeter

28.50%

Magnet

Collect 10 zombie-attracting Rammers in one game

28.75%

Winner

Complete all the story missions

29.01%

Flak Jacket

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

30.79%

Warming Up

Kill 10,000 zombies

32.32%

Held The Line

Reach Wave 8 in Bridge Barricade mode

32.57%

Right-Hand Man

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