Agreed...too complicated. Whether Akimbo is accomplished with sequential fire or not is inconsequential. Your end effect in a turn consisting of "X number of seconds" is the same: Z number of bullets in the air. All we can have technically is seeing one sprite fire after another, after another, etc. Thats visually satisfying. I love hearing a nice staccato, myself.
If any of you are familiar with Necromunda? Its squad (gang) based 40K. In that game the mechanic that is accomplished during a spray and pray is to force your enemy to duck his head, drop to the ground, etc when you shoot wild like that. They spend their time dealing with the rain of lethal weapons and less on offense. In XCOM, I'd love to see such an action damage morale or even their TUs in someway.
Actually,
-THAT- would be perfect! Damage their TUs as well as damage them. Do the chance to hit (reduced accuracy or whatever) as normal but it -ALSO- reduces their
TUs! Meaning, a Muton on overwatch with a bank of TUs for reaction fire loses a quantity of them! That adds a nice element and a way to deal with spotting someone on reaction TUs in the bank.
Same mechanic could be smartly applied to the minigun whenever you target someone...
Even superman pauses and loses the initiative when shot by a hail of bullets...even if its just to brag.