Just your standard issue law enforcement tactical BattleMech; spray lead everywhere. Hey, you get enough rounds downrange and you might hit something! Play this second line, I know RGHs have more than enough survival quirks to be up in the thick of it, but this weapon loadout best compliments your (hopefully) brawling assault lance as a harassment and distraction. Take solace in the fact that you can then just piss RAC rounds on poor cored out enemies in the end-game. Bonus Alt, since it's more than a bit different; This has way better heat management, but less DPS, so it comes down to preference between sustained harassment and more punch.
I'd look at it the other way. If you're already intending to play support and at range, you don't need tons of speed. Go longer with those lasers!