(This all only applies to Heavy Ammo Vest, since only people with it equipped have a backpack)

If I'm running Breacher and I have 3 IEDs or Mines in my pack, shouldn't getting shot in it set them off?

If I'm Demolitions and I have 3 reloads for my RPG, and 4 reloads for my HE grenade launcher in there, shouldn't those also be able to set off by enemy fire?