Alright, that buys us 1 round of the detonator/bomb drop device not working (it just "ceases functioning" for a round, it's not jammed, so we don't have to worry about a jammed explosive roll). But the failed willpower roll means she didnt shut down that machine gun.
Gunna FP that willpower test for the sake of party survival: (1d100)[2] vs TN 55
Thank the Emperor. The heavy stubber is Jammed until pigman unjams it by spending a full round action and making a BS test. Then he has to spend 2 full rounds reloading and the ammo that he had previously loaded is lost. Meanwhile the detonator/bomb device won't work for 1 round. Marc spent 2 fate points, but by the Charmed racial of Voidborns she got one back, so she's on 1/2 FPs.
Make it count guys. I recommend everyone spends a move action getting out from under the explosive.