Ok look....
Ok look Im not going to talk bad about the game or try to compare it to others but here is what you need to fix.
1. More weapons
2. More locations
3. A better intergrated story with possible side missions and some cutscenes
4. Soundtrack
5. Make it longer! I want to feel like Im playing a game and not a demo.
Do these things and you will have a hit on your hands.
Kryptic about
Attack from the Dead