Now for the LIVE part. You can be 3 different classes which have different abilites in the game ala wolfenstein. The load times are incredibly crappy, you can't talk to people in the lobby (like in rs3, crimson, etc), no stats, only four maps;However they are quite huge which means you could be wondering around for a good minute or two finding no enemies.
There is no translocator (the thing you use to get from place to place in UC). If you're expecting UC don't bother, it's more of a water-down crappy halo. Only one game mode which blends Bombing Run, CTF and double domination in one. The weapons are quite nice especially the sniper rifle, and are way better than what you saw in UC.
To win the game you need to use strategy not like in UC where you would just run and gun trying to do it by yourself. The vehicles are O-K nothing special, no flying vehicles either like in the screenshots. Overall, I don't recommend it. *Goes back to Counter-Strike*