I remember getting all the unlocks to be quick in BC2... maybe I'm wrong... I don't know... I definitely didn't have this same feeling of "I want to play my class".
Also about the jets. The unlocks totally make newbies easy pickings. Airborne radar is sick, automatically seeing where all the enemy aircraft are and then heatseekers to take them out. So it's a either these unlocks are overpowered, I'm getting a lot better at piloting, or other people I played against today sucked... maybe a combination.
That last Kharg island conquest match I was only in the jet for the enemies last 30 tickets and I shot down 2 enemy jets, a helicopter, and disabled a tank.
Edit: Also anyone else think assault is kind of boring?... they really only have two unlocks.. the defib and the grenade launcher. Also, I know you can use the grenade launcher as an attachment to your weapon if you leave that slot as the underslung rail or whatever... but does that make any difference in the game? Is it just faster to switch to the grenade launcher that way? I haven't tried it as I'm mostly sticking to medic play.