Willy's right about the above. The explosive yield wouldn't be any greater than traditional explosives, say TNT, but the primary thing making it deadlier is the flammability and potential for thermobaric explosives.

Also, on the rocket/missile question, I basically had V2s in the old RP and my sheet still reflects that (and no one objected). So if they're disallowed I will have to change that. Mine are only guided by a simple gyroscope so they have even rougher accuracy, pretty much only able to hit a specific city.