A slightly more realistic approach to the claiming system. We already have keys for doors and padlocks for containers, so why not doing it this way: Container has padlock => can´t be destroyed until padlock is removedAbility to barricade windows from either side, you can only remove barricades from the side they are built, you can still chop them downAbility to lock windows from the insideI think pretty much all of the points would be rather easy to implement (don´t know about the barricading) and would still provide safety for your safehouse in a slightly more realistic way.