What I've been running around in with this bugger. Pretty fun so far, its surprisingly effective. I feel like I have way too much ammo, but can't figure what to do if I took the 6th ton out. Armor I suppose, but meh.
You could upgrade to an XL290, but that's probably not worth it. Maybe consider swapping 1 or 2 AC5s for UACs (only 1 if you're worried about jam chance) and get a ERLL in the CT, or you can remove .5 tons of armor too and mount an AMS:
Yeah, I thought about UACs, but they tend to screw me over pretty bad at the worst times. I think i might try the ams, though I'm wary about dropping too much armor.