On 12/16/2015 at 2:26 PM, ApocalypseZero said:

For 2 Rifles, just use the Two Weapon Combat rules.

Go ahead and do that... and then realize that those rules expressly forbid the use of two-handed weapons. This means that using two rifles or two electrostaffs doesn't work even if you have four arms.

People need to remember that this is a narrative combat system not a D&D style one where you get automatic extra attacks with weapons in each hand. When you make an Attack Roll you aren't rolling for individual strikes but the result of many strikes and their affect on the scene which includes any damage you may do. Just follow the RAW and describe the results to fit your character there is no need to change the rules.