Right now all structures can have 2 or 3 states (either OK/destroyed or OK/damaged/destroyed). That would be enough for eraly 2000s but now when Arma 3 has PhysX it's shame it's not used for something more than ragdoll.

The idea of the request is shown in the video:
http://www.youtube.com/watch?v=VLwMzr-hBII

I understand that realization of this feature can require recreation/modification of all existing structures (and a little bit naive because), but simple adding physx-destroyed-buildings in game engine will be enough (I suppose the community will handle all the rest).

Apart from looking good this also makes gameplay different:

1. Make wall-breaching possible;
2. Make creating keyholes possible for urban warfare.