Cocoon is a really underrated perk when you have it on all 3 guns. Basically shoot out your clip, switch weapons and shoot out that ammo, and then do the same with the last gun. By the time you are back to you original gun it will be reloaded and ready to go (no reload time needed for any gun). This is great in the new raid when you need to put DPS out constantly with no time to reload. Other than that the raid weapons aren't all that great, like he said solid infusion.