There is single player??
Assuming that is not sarcasim....there is, and it seems like it is similar in length to the SP from BC1, which was pretty good length on the 360.
You can check the achievements for the 360 and see how many chapters there are, and the chapters in BC1 were substantial in size, and LOTS of space to roam. Lots of open land to run and gun, goof aorund with etc. (there was an obvious POINT to get to in each map, but there was MANY ways to do it. Fight through the beast, sneak around, front door, back door, etc.)
Woudl have been awesome to have coop for the SP out of the box....maybe a DLC later or something.