There was good discussion on it in previous thread (i linked it in my post right after authors post). Here are my thoughts from it:
I wouldn't care much if Scuttle would result in humans bailing the tank, after all, that's your personal decision, and you could get out of the tank, you dont need to die with it.
BUT!!! only with following conditions
a. you only have a pistol (regardless whether you're the loader or Squad Lead)
b. the action can be performed only by the person who is the acting tank commander, and results in everyone exiting the tank
c. you cannot jump back into the tank
d. tank is completely out of commission after that (doesn't matter if it's destroyed, or not, it's a useless metal scrap)
I dont see why you cant cap with a tank crew, they should be able to help, just perhaps at 1/3 of rate of other team members