That could be a fun thing to implement. I always wondered why in most games towers walls and castles where separate. Well, unless you count the Stronghold series. Love stronghold So, this gate business is all Greek to me when it comes to animating doors, so I just built the housing. The Persian armature is in there so all that's really left is to model some fancy city gates and stick them on the bones. Unless, of course, all y'all hate it. I won't have much more time for 0AD in the next few days, unfortunately.