About KILLSWITCH: After you're logged in (for the first time) one person must stand on the pressure plate at the South wall. Then You choose a team (one per person), and when you're both ready press the "Start Game" button. This is the point in which you both leave the Skype call or TeamSpeak server. As you switch places you have to try and get the other person to lose track of themselves and die by anything from fall damage, to dying in lava. The first person who dies loses.