Overall it's a REALLY good game, plenty of guns, challenging if you don't play your cards right in the beginning. The music is also really good and I like the scope feature, the small scope interface is adds actual challenge to using it, maybe you made it small to compensate for the fact that you usually have to "Zero" telescopic scopes like the ones found on most hunting firearms. ALSO, I like how you have to lead your target to get headshots, which is realistic because of bullet velocity/travel time.
The only beef I have is how sometimes the survivors drop like flies, basically screwing you over later in the game, if not earlier on; which sometimes makes you have to restart. So maybe dampen the death rates of survivor search parties. But since that's a intended game mechanic, I feel it's only worth taking off half a star
By the way, I think this zombie mutation causes some people to maintain their sentience, but changes them into cats... (Found a survivor named Bradly Fernandez, who's picture is a CAT with 3-3-3 stats.)