Can a character use the "Double your equipment for 5 pts" rule in combination with the rules for combining multiple power attacks?
For example, say a mutant buys a gun (RKA, OAF) as a power, then spends 20 points to get 16 firearms. If he has the Extra Arms power (and can therefore hold all 16 guns at the same time) can he declare a "multiple power attack" and shoot all 16 guns as a single attack with no penalties?
This seems a little absurd from a balance perspective, as the character deals x16 damage (less x16 target's defense) for only 25 pts.