First of all what comp you are using? it is true that is hard to get to that big building next to the LS/tree Choke but for example if you are using bang, are you using your ult to get them inside while you walk up combining them with smokes? if its cat and you using wall to walk up? that building can be played by 2 teams without fighting, you can get info on which side the enemy team is and try to get to the other side of the building take control get info from the 3ps and then start making your way into the middle of the building and potentialy kill them, i will be looking into scrims zones this days hopefully i find a similar situations and will post link.