The SP was alright, but I get tired of the scripted gameplay. I could do with climbing the glacier. Wow, I'm clicking two buttons back and forth. The end was alright from a story-telling perspective, but dumb to a gamer. It needed to be more interactive. What happened to big, final boss battles?
I like the tweaks IW made to the AI, but Veteran should have been ramped up a little more. Veteran was not that much different than Regular. There weren't any horrible spots in the game on Veteran. There were two spots where there was a long gap in between two checkpoints, but the AI wasn't as brutal as it has been on past CODs. For reference I've beaten COD 2, 3 and 4 on Veteran.
I mostly play regular deathmatch...mostly. I like the map updates that were pushed the other day. I was surprised to see "Wasteland" on DM. It was fun, but it quickly turned into everyone running to the cave and spraying each other.
I had a 30-0 round on "Highrise" a few days ago.
I think the big part of the game is configuring which killstreaks you have activated. A had been playing with 5(Predator)-7(Harrier)-9(Pavelow), but then I switched to 7-9-11(AC130). I then rethought about them and spaced them out a bit more by going with 4(drop)-7-11 which works a bit better. I think I'm going to unlock the auto-turret (5) next and use that in place of my 4(drop). What killstreak setup is everyone else using?