[admantis]

These boxes are part of the object interior (1 object for the whole interior!), so not even RemoveBuildingForPlayer would work. You can't do anything but map a completely new ammunation or change the object position.

Also, DestroyObject wouldn't work in this case, because it will remove an object ID by the server. For example if you add 5 objects, and use DestroyObject(3); it will destroy the third object (overall).