This game is good, however, it needs a bit more places to explore. Add another town or two. Maybe some military camps in the wilderness around the base. Also the spawn rate of zombies can get annoying whenever youre attempting to loot some of the old farm houses. Ive found it a bit too easy to stumble across good gear and weapons at the beginning of the game. And the location in which the gear spawns can be sort of odd. Another rather cool thing to add would be some sort of skills system or different classes you can choose out of.
V1n0m about Experiment Z: Zombie Survival, v2.7