Very ambitious entry, unfortunately I couldn't get very far even on newbie mode! I agree with hubertloz's comment, I could see this working as a template for a tactical shooter game. It would be cool to combine the two control schemes, i.e. point and click movement with voice commands triggering actions in game (like giving NPC allies commands, something like that).
Anyway, great job for 72 hours and I look forward to seeing more from you in the future!