To deactivate the scrambler at the industrial district comms tower break the device on the platform below the comms tower:
To deactivate the scrambler at the diamond district comms tower go to the elevator on the side of the building and use the shock gloves to lower the elevator:
To beat Bane when you are still in the hotel punch him as much as possible. If he has a red halo above him dodge out of his way. If he has a blue halo above him counter him.
To beat copperhead use the quickfire on the explosive gel over and over: