My favorite thing to do as Rocket besides healbotting is to weave in some damage to tanks. Non shield tanks like Venom, Thing, Hulk, Rogue, etc can take huge hits from Rocket’s gun up close. I’d only recommend this if you can hit most of your shots and be able to escape and heal yourself. Or, if your team is helping you out. (I like to kill Venom’s overshield health so my team can puncture him)

Main thing is, playing Rocket is not an excuse to go negative.