I dont know if this is really relevant, but take a look at the following situation:

I have a HC environment, and all HC´s working autonomous.
Now, if one HC disconnects for what reason ever, the server should delete all work the disconnected HC has done.

My solution at the moment (1.50) is:
onplayerdisconnected { {if (owner _x == _owner) then {deleteVehicle _x} forEach allunits}; vehiclesagents etc...

is it fast enough to catch them all? i dont wanne monitor all the stuff the HC creates and update the server frequently... thats nasty and redundant code. :(

Is it possible to program the server in that kind, that he does not automaticly takes ownership from units, which where created by specific Clients if these Clients disconnecting???