Often lay people make sense of what they have heard with words like bang, gun and rocket since their experience is limited
We should make due allowance for this in the witness comments describe above
Yes, but allowing for the unreliability of eye- (or ear-) witnesses, my point about the 'loud bang' was that it would suggest that a cartridge had fired, either with or without a rocket. The rocket presumably makes a much more whooshy sound (technical term) - even to laypeople.
airsound