Quickest way to level up in PVP?

[zeopower6]

There is really no tip other than play a lot.

If all you want to do is get EXP, figure out what GC gets the quickest queue times and spam the hell out of Frontline maps. Since you are Excalibur, I'm not entirely sure which one that is now... but it may be the Flames still.

I remember hearing that if you lose (2nd/3rd) more than a few matches in a row, there's an accumulated bonus for each loss that stacks up until you get a 1st place, where the game dumps a ton of EXP on you as consolation for having lost so much and the bonus resets. I don't really know how the mechanic works, however, so hopefully someone else can shed some light on exact details.