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.
Is it's MP5k ? I don't sure : )
Yeah that's a MP5K, smaller verison than MP5, although I don't see a handle.