how to counter freddy???
I think u have to listen until she is at the door and either just shut it and hope u dont run out of power or try to time when she attacks(or average if its more random)and then close door
and by at the door i mean by she is at the place before she would enter office
she laughs every time she moves when she is at the cam closest to your right door close it until you hear her laugh again or try to time it