Don't get too caught up in the fine details, at the heart of it, CoD's multiplayer has allways been much clouser related to the Arena shooters of old, than it has Tactical shooters, the pace of the game is similar, and CoD does very little to restrict player movement, so all thouse gamey tactics that where born with Quake and UT still work just fine, it's just that some things have been changed, dodge is replaced by Dolphin-diving, etc, but the classics like the reverse strafe jump, the circle strafe, the corner jump and so on still work just fine, and will get you more kills than trying to use realistic tactics.
Infact, since UT3 bombed hard, a lot of the UT community has migrated to the new CoD's to get their fast paced MP shooter fix, they may not be exactly the same, but they are similar enough for thease players to considder it an acceptable surrogate to UT, their twitch skillz cary over just fine.
