DSR-50 with CPU and Fast Mag
Dual B23R or whatever preferred pistol
Ghost/Lightweight
Toughness
Dexterity
It's essentially a semi-stealth mobility setup. Ghost allows you to get around and pick your shots, lightweight lets you move to a different location fast enough to setup a new shot if you've missed. Pistols are for when you are mobile, as well as dexterity, and toughness is just a person preference because I'm not amazing at quickscoping long shots, so I like to be able to hold my breath.