Don’t see much of a problem with that, maybe its a bit pointless that some of the badges are tied to give out amount of ammo in 15 sek (I think), since that is pretty much only earned at spawn. But I don’t see much of a problem infact it is a very nice incentive for new players to drop that ammo not just for themself.
And thats one of the thing we all want right, people dropping ammo in places where the team picks them up.
XP gains will propably be adjusted anyways, if telemetry shows that suddenly the firesupport guys get more XP than the other classes. Afterall there are new badges for any class so I guess it will level out.