Personally I have to argue for RP, last thing I want is there to be assault mech spam every second.
That's the big hope I have for this over.. oh say mechwarrior 5, that more options will be open and light mechs will be able to bring down heavy's in an actual combat tactical situation.
It is all about variety of experience for me, otherwise popping in for an assault/heavy slugfest every time i play will get really, really old.
And to those who speak of Bf2 and 2142, the first few initial ranks give you more than enough unlocks to get those of your choice, and the stock guns were not that bad.
That said I think stat padding ruined bf2 in a way 1942 and Vietnam were immune too, a little bit of my soul dies everytime a new FPS game gets a stat tracking system.