This might be intentional but I have noticed that the infected at heli crashes seem to spawn +700m from player's bubble.
Now that is not my issues but that the dead infected don't seem to despawn after 5 or 15 min after a player has killed them.
On official the server restarts are set every 8 hour's so that where I did a little investigation and noticed that infected where still there after +45min and long after the helicopter had despawned.
Just don't feel right to me. God damn internet gaming feeling's!