Source code first:
What it does-
You know how if you drop into a teleporter it retains your velocity and you can easily crater when you come out the other side? I made this so you could use a teleporter and exit the other side with no velocity.
I had an idea in a map where players would jump off a building and aim for a small target far below. If they could hit it there was a teleporter that took them to the next section. Using this kept them from dying as they could hit the entrance tele at full velocity and be standing at the exit tele instantly.
It's a little unique of an actor and not really needed a whole bunch but it will teach you how to control velocity of an actor and that's always useful. Enjoy!