After you kill some person in Zamak truck (including in back) or in Zamak Dump they looks like alive (they are moving with head etc.).
- Legacy ID
- Health System
- Create Zamak or Zamak Dump with driver
- Create your soldier player
- Kill for example a driver
Are you sure they are not dead and just look like they are alive?
try to shoot the driver and then go in as a driver,
if he is dead you should be able to, and his body will drop out of the vehicle.
I know the driver of the Zamak when dead still plays “alive” idle animations of looking around, so from a distance still looks alive, it’s not until you get up to the truck that you can see you can enter it as its driver, thus he must be dead.