There are many tunnels and various corridors at the abandoned base, and these corridors teeming with zombies. You have been assigned sector 7 corridor. The zombies need to be destroyed or they will eat you alive. Look for weapons and kill zombies.

Control keys:
F - Pick up weapons, ammo
1,2,3 ... Change weapons
WASD - Character movement
SPACEBAR - Jump
SHIFT - Sprint
Esc - Exit to the menu
LKM - Shoot