Got my copy yesterday and got up to Desperate Measures, wow this game is good. I've enjoyed all the other COD games and stuff like MoH and BHD, but this just blows them away. Ok so the levels aren't massive and the SP campaign as we know isn't very long, but i think its very good.
Some real intense stuff, loads of action. Love the AC-130 level and the sniper one in Chernobyl, thought that part looked and played better than most of Stalker. Not started multi yet but will do soon, Dare i say it, i'm more impressed with this than Halo 3. I loved Halo, but this just seems better in some respects.
As for the voice work, i'm sure Price sounds like Bill Murry off The Bill.