no upkeep if you survive battle? what about them damn unlucky guys get headshotted spawn-spawn? have anyone thought of them?
the current XP/gold system is fine, stop thinking about new ones, this is quite new user friendly, what more do you want?
edit: after going thru all the posts (damn you walls of text), i still have to stick to my opinion. If you cannot reward all the useful activities being done during a battle, but you might be able to reward some, do you think it is fair? No.
But still, there are rounds when u get loads of kills, on others you are happy to run into any foe at all (yeah, happened few times, i lead a brave commando, just to navigate on the city tunnel sewer map for 2 rounds without meeting any enemy O.o)