Re: Gather Dust?
It uses a rather nifty (and quite unpleasant for those targeted) technique called thermobaric weaponry. (Even the word sounds cool.) Normal explosives have a fuel and an oxidizer. Thermobaric weapons are virtually all fuel. When you drop the bomb, a small explosive blows up the device, creating a cloud of fuel, and then the heated fuel hits oxygen and ignites. This causes a massive shockwave and, as previously stated, depletes all the oxygen in the local air, making it a very effective weapon against fortifications (Big Boom + Pressure Shockwave + Asphyxiation generally wipes out defenses and kills everyone inside).