can someone explain to me , how I , a level 86 with level 4 and 5 def, walls .. traps and upgraded def units  . .. .    fails to do ANY DAMAGE what so ever to a level 86 ..  ( no walls destroyed , no traps working as a level 86 named Steffen .. can besiege  without losing any units ???  and when I boost my def. units before returning everything I have , over 18,000 mixed ,, from light all the way up to champion units ,, once again,, no effect .. when my COA  members and allies send reinforcements , they lose everything they have .. some up to over 15,000 mixed units why only doing less then 500 total damage to heavy units down ...