The best portrayal of urban warfare I've ever played was the old original classic Xcom game 'UFO enemy unknown'
Well modelled towns, buildings with stairs, rooms, plenty of areas that you could blow up. Even civilians getting in the way so you couldn't just toss a grenade blindly into a house...well, you could, but it was considered a bit naughty to kill civilians
Yes, I know it's not strictly speaking a wargame, but I'm surprised that not a single game released since has come even close to such a great depiction of urban combat.