The "SpawnPlayer" marker is extremely important in maps but does not have its own type for the script API. This makes it impossible to get the spawned players from the markers within scripts.

The only way is selecting it with a trigger like PlayerClearCommandTrigger and then using the respective methods from the script API.

This is exceptionally inconvenient, and restricts it to map scripts rather than extension scripts.

Please provide it with a custom type and the respective method to get the created/spawned player.