Nation Red achievements

Complete any mission without taking any zombie damage

In an On-line Coop game, revive another player and make sure they do not receive any damage for 15 seconds afterwards

In an On-line Coop game, perform your first revival

Kill 150 running zombies in a single game

Survive for 15 attack waves in Barricade Mode

Kill all zombie boss types

Kill at least 10 zombies with one grenade

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

Survive for 10 attack waves in Barricade Mode

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

Kill the minigun zombie boss

Kill any boss within 30 seconds of the boss appearing