All in all, I don't see any glaring issues with the app. I'll just ask a few questions before I give my decision.
1. You decide to hunt a marine who separated from his squad. The marine fights back and manages to return to his squad, and the squad proceeds to attack you. How would you deal with this?
2. You are near the front, running between the two opposing sides when a marine shoots you. They claim they mistook you for a lurker. How would you respond?