I don't think fences, bushes or sandbags would cause any major lag. Simple animation of a fence falling would cause like, minor to none lag?
it doesnt need to even have destruction animation, it could just fall over It would be nice if dice decided to make everything destructable, just immagine the replayability in just ONE map.
Will tanks be able to blow holes in buildings?
how will the buildings be destroyable? Will bazooka rounds do enought to destroy objects or will it take heavy arty and tank shells to destroy buildings and or things