This build is a Beam build for group gameplay or 1v1s. I suggest you use this definitely with a Healer. I also would like to point out the fact when you're rogue it gets rid of the 10% reckless incoming damage due to Banshee countering it with its 10% damage reduction from non-rogue players. This is not entirely my build, I want to shout out at Cryptonomous for giving me the idea from his beam build, just I recreated it to better suit my play style and hopefully yours as well.
The first M4 is used for 1-15 Meters. The second is used for 16 Meters.