Buy everything in Survival Mode
Rescue 50 Civilians From The Militia
Get 30 firetrap kills in one Survival match
Kill 50 enemies with the heavy object smash
Complete Campaign Mode on Normal difficulty
Beat a Campaign level with no ranged attacks
Buy nothing for 10 straight waves of Survival
Do 10 combos of 20 hits or more
Reach the zombie wave in each Survival map
Kill a Survival Boss with no traps or grenades
Kill 12 enemies
Defeat all the waves in any Survival Mode map
Complete Campaign Mode on Hard difficulty
