Gun shot attraction in PVE [Discussion]

I just played a game in custom where I killed 29 scavs and pmc at the check point area close to boiler room.

When the game started i spawn on the hills and walk down to the check point. I saw about 4 on the main road, then killed one and big bunch of them gather around the dead body. Proceed to kill all of them. Then they just swarm into the dead bodies and non stop coming to the vicinity. I killed a few pmc there too and took their weapon and all the ammo because my ammo are all exhausted and the scavs are still coming! Non stop literary.

Was curious how are you going to loot where scavs keep spawning or coming towards you and there are like 20+ dead bodies all around you.