Not going to argue with you.I know how to
Let him sit in the building in the meanwhile you can cap some points or engage other units.You DONT have to engage.
I tried to do that, but sadly, it just doesn't work on most maps...
I always find myself in a big disadvantage because I couldn't clear the bulding and went for capping the map, while enemy secured the position and basically got me cournered or cut-off.