Tank Turret Script

I’m trying to create a script for a tank turret that’s similar to the Track To Object Actuator. The difference I want is for the turret to snap stop, instead of slowing down to a stop while rotating. Also, I’d like to control the rotation speed. How would I do this?

PS: This tank will locate targets on equal or greater altitudes.

Ok. I’ve figured out everything, but one thing: I need to figure out how to make the rotating objects stop at an instant halt. Help and advice would be greatly appreciated.