Jesus, it's easy. I logged on and the second game was DXP.
I've gotten 250k xp, been playing for... three hours now. Gotten 2 Jet Service Stars and a couple of stat wise boosts.
Damn DXP is a terrible idea, at least, for battlefield. Thank the non-existent God it doesn't count ribbons. (Base xp and medals I'm positive about, Service Stars, I don't think so, but I don't know)