Game Development Reference
Adjust your settings so that they match the ones shown in the following screenshot.
Be sure to check the checkbox marked Enable Remote Control!
Click the top half of the UDK Game icon to launch the game.
When your game launches, you should see the Remote Control panel appear
to the left of the screen. Fire your Link Gun and then select your Actors tab.
Click on the refresh icon to update Remote Control and allow it to list the latest
actors into the scene.