[Wesley221]

When someone spawns, it will create the checkpoint over and over again for EVERY player which spawns. If its a global checkpoint, just create it once at OnGame/FilterScriptInit(). And then disable it for everyone in OnGame/FilterScriptInit() again. Then when someone spawns, just activate it for just that player, so it wont create a new checkpoint for EVERY player when they spawn...
Also dont forget to disable it when the player dies..