I would have to agree with vehicles, I stay away from conquest maps that have a bunch of heavy vehicles like tanks, choppers and so forth. Bout the only conquest map i play is grand bazaar and even then i find the vehicles annoy me sometimes when thats all the other team uses. Another thing that bugs me is the mortar i have played so many rounds where the top guys on both teams are the ones sitting in a corner mortaring the whole time.
As far as origin and the web based server thing i dont care for it but am getting used to it i hate having to exit the game completely to switch servers.
Also anyone played a operation metro conquest yet lol, nothing but nades, rockets and grenade launchers all game, easy way to rack up points for medic though just sit back and revive ever 2 seconds