IS side only, and i have run these in many matches and had much fun in all! (FYI, out of 100 mechs, these are the only ones i would run ac2's in outside of the Shadow hawk 2H, which can run triple, but i don't own, but will one day!)
Blackjack BJ-1, rapid fire, major long range harasser, quick enough to move, and lay down more fire, quirks really boost the DPS on this one.
Jager JM6-S, Quad Ac2's, good amount of ammo, still quick enough, and has a pair of ML's. It's just a solid mech.
Victor 9B, Triple AC2's with pair of ML+SRM4's back up.. I swear this is a really fun mech.. Have had many great matches in pugs with it. Quite a few times i have been the high scorer in the match at 700-800+ Such a great feeling doing that in this forgotten mech... Just use your speed/mobility to your favor, and repeat to yourself, I am not an assault.. i am not an assault..