approximate timeline after vehicle is destroyed
both alldead and alldeadmen command return similar result
0 sec
[heli,B Alpha 1-2:1,B Alpha 1-2:2]
20 sec
[heli,32eca040# 163980: coveralls.p3d,B Alpha 1-2:2]
40 sec
[heli,32eca040# 163980: coveralls.p3d,32ec8080# 163983: coveralls.p3d]
coveralls is not a unit anymore. Happens only with AIs created with createVehicleCrew