ZombieMod takes a unique approach on the Zombie Apocalypse by putting it in the perspective of a military commander, not a survivor. Since it is 2 years after the first infections, resistance on the east coast is organized, resulting in battles rather than small groups fighting for survival.
The M1A2 Abrams is one of three "End-Game" abilities that are available to survivors at the end of a match. The Abrams is about 90% animated with only the top MG remaining. You may notice that the tracks are too shiny, a bug which will be fixed before the release.