Players will team up and assault a target location, progressing from one point to another until they defeat the map's Boss(es). Unlike with Crater, there's an in-match level system - killing zombies earn players EXP and Gold, and as players level up, they will get more HP and attack power boost, up to Level 30 in one match. The Gold earned can be used at Ammo Station to refill ammo (400) or Supply Station to either: Level up instantly (5000, 10000, 20000, 30000 and 50000 for each level), supply primary weapon (2000) or refill HP (1000).
Once a Boss is defeated, players can flip Reward Cards to receive various goodies offered in specific map, with the best prize being rare weapons dropped by the bosses themselves.
- This mode resembles a cross between Assault and Survival maps in the PC version: Players start with their own weapons and progress through the map until they face off the boss.