You're on top of the roof, the hook reaches only 1 meter to hook yourself(3feets). Close enough but not lke that you can hook yourself to the other roof.
If its possible, you press "S" you go down and "W" you go up but slower like climbing up.
Even cooler if the rope will stay there for the end of the round and that long how far you have taken it. after come back and climb up
recoil would be 0 when youre standing by on rope.
And to add realism then you can hook when you have one-handed/secoundary weapon. (thats not important)
I dont know is everything possible but thats what i ment.
http://xs.to/xs.php?h=xs228&d=08256&f=1249.gif For example
By me ^^