Had this game ordered on Pre-Release from Play.com and since I got it in October I have been thoroughly addicted to it!
The graphics are amazing, the gameplay is fast-paced and exhilarating, the multiple game modes mean you are sometimes needed as a sniper, sometimes as a medic, sometimes as a support player or sometimes as an engineer blowing up tanks and repairing your team's vehicles.
If you hate the monotone arcade-style shoot'em'ups that the COD series has now resorted to then you'll love this! There are five different online game modes as well as CO-OP and an extensive single-player campaign.
This is quite simply the best X-box game I've ever bought.
Buy it now! ;)