stuck on the roof

[Guest]

im on the roof and ive shot both cables on the tower then countdown starts but i dont know wot 2 do next. Next thing i no is the helicopters taken off and im dead. Can anyone help please <font color="white"> </font>

[Scotty]

Once both cables are shot, shoot the tower itself.

One M79 round works nicely, but a spray of Colt Commando fire will also work.