Heck, the rules say that you can dual wield against 2 targets with ease even if they're on opposite sides of the room, but absolutely forbids shooting at the same guy twice. Even though all you do is point both guns in the same direction and shoot...
Actually they got a mod for that now...
Just Download the 'Breaking Thoth-Amon's Mirror'(BTAM)™ App for your Smartlink System.
Normally when you are designating targets for your shooting solution the system utilizes the One Target, One Lock feature which is designed to prevent you from assigning two different target designations on the same individual while dual wielding.
This is of course to avoid doubling up while shooting in a target rich environment, so if you are facing mooks A,B,C, and D and you set the firing system to calculate for four targets you don't end up with a spread pattern of A, B,C, and B again because you accidentally assigned B as both B AND D, which in turn left the real Mook D out of the killing loop because you only called up for a shooting solution involving 4 highlighted targets, leaving this last mook standing and able to get a shot in on you before your next pass.
Breaking Thoth-Amon's Mirror™ allows you to override this One Target, One Lock feature to 'mirror' the same target on the shooting solution list of valid targets.
This has the effect that now you can designate Mook A as Target A AND Target B for any shooting solutions, thus freeing you up to blaze away merrily
at just Mook A alone exactly as if you were shooting actual seperate parties while dual wielding without running into targeting conflicts and other cosmic restrictions particular to the SR universe.
It can be easily toggled on and off with a Simple Action (Free Action if using Wireless ON) for when you are shooting at groups and do not want to accidentally focus fire on just one target.
Consult your local Gunsmith or Fixer today about whether BTAM™ may be right for you.
Side Effects of BTAM™ may include Faux Slow Motion Shooting, obscure Gun Fu references, white doves flying away just before the shooting starts, and increased ammo consumption.
Don't install BTAM™ if you are prone to Pray & Spray, only target large crowds or suffer from moral qualms about blowing the absolute hell out of a single target.
Please use Responsibly. 