I don't know how you got things working, but even as SimpleObjects, the bunker wrecks refuse to work network side.....
Even doing it in singleplayer, it seems trying to spawn SimpleObjects (or even bundles) directly doesn't work at all....
Right now they will only work using effects and emitters and only then they will show up half the time. I want to use the normal wreck lod system, but I can't as the lod will still use the collision from the undamaged model as the collision for the wreck. (since my wrecks don't have ceilings) If I could get the lod system to work for me I wouldn't need effects...oh well. At least it works some of the time...