I played this for 6 hours, and almost halfway through. I just gave up on it, its boring same thing; running around trying to find out where or what you’re supposed to be doing isn't fun for me. If they are going to rip off Halo in almost every way, they should at least make it fun like Halo and keep things moving smoothly. There was so many times I was stuck on something that you just give up and wonder why bother wasting time and effort to go on.
If anything to be said here would that this game has been completely overrated. It’s got a poor game engine with the frustrating "puzzle" type gameplay of another type of game. I hate replaying a scene over and over; it’s not fun and pisses me off.
Some things that were really bad Halo rip offs; the beginning of the game there are flying banshee type ships, same flight trail and explosion when you destroy them. Also there’s an enemy that acts like the Flood. They die, and get back together to fight again, and the best weapon for killing them... shotgun, just like in Halo.
In the end, I'd rather be playing a better game.