I spent 2 years developing this game, of which half that time was spent making the npcs not see you through walls, pick up weapons, hide behind cover, and the sight system for how they do or don't see you through walls. Also you have allies, and your enemies may do crossfire amongst other foes, which are not on your side, so that you are not the center of the world. I hope you enjoy this game, lots of monster energy drinks were required in the making of hehe.
EDIT: Thankyou for all your feedback. I'm making a sequel and want it to do better, so please feel free to say anything you want about the game. I love critisism, suggestions for improvements, anything. Making games is about it being fun for you, that is my goal. Sorry if you got stuck on walls, I'm working on it now. Anything else? Weapons or Npcs?
The sequel so far will have 25 missions, same amount of weapons, 12 utilities, 4 playable races, better tutorial, graphics are similar but much easier to see everything (cleaner), and zombies can infect/change the alliance of your allies against you. I'll add in quality options for you guys, um... anything else? Those of you who played the game all the way through, (there's only 8 missions) what did you think of the ending, or after mission 4? Are the cinemas and cut-scenes necessary or can you live without them?