


They don't stack, but they benefit from shooting slower, although shooting fast won't neglect their effect entirely either. Electric charge, Flame gaze and Acid bath all do DOT (Damage Over Time).

Having twice the same attachement doesn't mean it will stack stack (2 Damage support or 2 Ammo support won't give any more than 1).Damage support bonus is very negligible.All these tests have been performed inside the Weapon Crafting Arena on "Impossible" difficulty and against the dog necromorph (which acts like the babies in Dead Space 1). I've been experimenting on the attachments that add damage out of curiosity, and here's what I've observed.
