Currently in DayZ, we cannot use Wreck LODs - if we attempt to use one, nothing happens whatsoever.
A current workaround for this is to delete the current object on destruction and spawn in another one, but at times it can be quite buggy and it currently poses a few problems with player attachment/detachment.
Another possible way around this is to create a ForceLOD function for the object class which could be used like this:
Object object; object.ForceLOD(1);
The function takes in a float (in reference to the number of LODs) proto native void ForceLOD(float lod)