Loadouts really add infinite possibilities for griefing.
I love my KOTH/Domination layout for storming the Hill/Base: BR, Boltshot, PromVision, Frag Grenade, Resupply, Explosive Power (or whatever the perk that makes grenades stronger is called).
Being able to spam extra strong grenades with pinpoint accuracy thanks to PV never gets old. For defending bases, there's also a good one: AR, Magnum, Camo, AA Efficiency, Sensor.
Not so much fun when you're on the receiving side tho.
The best thing is, basically every AA is either broken or worthless.
Broken: PV, Jetpack, Regen Field, Camo
Worthless: Thruster
Only Shield is neither, although I would say it's closer to being underpowered.
Edit: And fuck being matched up with full teams when going in alone. I can't count how often I've been among the best three players and still lost by a landslide due to the incompetent fuckwads on my team.