A hallway would create an echo as the sound waves bounce off and are funneled. But since there was opening the gun position was angled where AB was at so the sound should have traveled sufficiently for those nearby to cause them to flinch if a weapon was discharged.
A hallway would create an echo as the sound waves bounce off and are funneled. But since there was opening the gun position was angled where AB was at so the sound should have traveled sufficiently for those nearby to cause them to flinch if a weapon was discharged.