Team Specific Breakable Walls

[cruizer]

I have some walls that are func_breakable to create pathways into other rooms. Is there a way to make them team specific, so that the opposing team does not break them first? I still want the opposing team to be able to walk through them after they are broken, just not be able to break them.

[Pseudo]

Make a filter_activator_tfteam and set it as the breakable's damage filter.