The game I am looking for is set in the future. The cut scene states that the world has run out of energy. 4 teams (from what I can remember) have found a huge energy crystal on another planet. They start fighting over the energy. Your character looks like a red spartan from Halo. You fight against the blue team most of the time but in some levels you fight 2 or 3 other teams. After completing a level you get some kind of currency. If you save up you can buy new weapons or armor for show. Please help me find this game.
By any chance, are you talking about Armor Mayhem? Because that's the first thing that pops into my mind when you talk about four teams fighting over an energy crystal.
