As a lvl 30 comm with full, uncrafted, meganaut gear I use the damage implant with the atomic disperser! I am doing 57-95 damage and 95 dps! If there is at less one engi I'm good to go!

I was in a run with two 30 ops and when I was using the shield/black widow, I could not hold agro!! When I would switch to my disperser/damage implant, they were left alone.

Also I find the kills are a lot faster with the rifle setup!