What activates the swinger? The shooter? How? and When?
And why are T4 & T5 being engaged in Tactical Sequence? P3 is cover so T4 & T5 should be engaged in Tactical Priority (slicing the pie).
The bottom of the swinger is weighted and rests on a piece of wood attached to a rope. The rope is going to run around the left side of the range so nobody trips and someone who isn't shooting pulls the rope when the shooter is approaching P2.
You are correct about slicing the pie when behind cover but stage creator rules trump that.