Let’s say I have three Multi-Missile Pods and I decide to FIRE ALL THE MISSILES! What happens?
[Source: WotC]
Although you can totally FIRE ALL THE MISSILES, you still do it one at a time. So first you scrap one that will do 1 damage. Then you scrap the second to do 2 damage. Finally you scrap the last one to do 3 damage. 6 damage total.
Question regarding interaction between
Backup Bag and weapons which can be scrapped during attack (e.g.
Sturdy Javelin and Multi-Missile Pod). If I choose to scrap the weapon and it's saved by Backup Bag, can I choose to scrap it again during the same attack?
[Source: WotC]
No. It scraps as a result of a triggered ability, which does not trigger again. You would have to somehow attack a second time.