This is the first time another studio has turned its disembodied hand to the world of the COD undead, and it's a thoroughly decent first attempt.
The wave-based survival mode has become synonymous with the series, despite only appearing in Treyarch's games (World At War and both the Black Ops). Havoc, the first DLC pack for Advanced Warfare, introduces four multiplayer maps and the return of perennial favourite, Zombies, sluggishly rebranded here as Exo Zombies.