Campaign : Very short which was unfortunate, 5 and a half hours on normal difficulty. Some enjoyable moments but very average.
Multi-Player : The meat of the game really but there's not enough innovation, a step forward in places but a step back in others. Unfortunately the graphic's seem stale and have not improved since COD4 and even hurt my eye's at points. After being spoilt recently by the Killzone 3 beta you realize this game looks marginally better than games that came out 3 year ago.
There's also a Zombie mode too which while fun offer's very little new to the plate really.
Over all this could have been a great package but sadly if you own a previous entry too this franchise there is little point upgrading.