And not much else.  I tried some more CoD4, but I just can't get into it.  I think I just have too many problems identifying the bad guys from the good guys.  I also have a real problem with the "take 3 bullets, go hide, come back" gameplay.  It's also one of the major problems that I have with Gears of War.  Crouching and praying that I don't get hit again while I heal seems just stupid.  At least with Halo's energy shield it sort of made sense in context.  But why would a Marine heal up just because he's not getting shot?