It's decent. You may want to add health bars and make a beter fighting system.

This is a very strange game, people are just walking in public with guns shooting a bus?
The only functional button is the shoot, so I'm basically playing pistol only. The pistol needs more body damage. EDIT: This was from 2011, wow.

I got spammed with zombies, you may want to consider using lwrp to help the game run better.

This is next level, the same quality I'd expect from someone like Bossfight. Keep it up, this and Submerged are some of my personal favorite songs. Edit: I recommend you put this song on Spotify

Great song man! I'm thinking about using it in one of my games. The water part was really cool.

The ear rape at the beginning hurt my 3d headphones. Good song overall. I'll be using this in one of my games, I won't forget to give credit!