Better graphics with a better AI but still short for us single players. Hopefully an expansion ain't far behind.
The lack of a health bar is an added bonus since the screen actually changes when you receive damage. The smoke grenades add tactics for those machine gun nests raids and camera angles are decent. All in all a good game that could always be made better. Short content on the single player side for the price of admission leaves a little to be desired, but the improvements outweigh the cons.