New to forge and I am not sure how to set up the spawns for strongholds. I don't want teams spawning at a base they do not control. Is there a certain way to set the spawns for strongholds?
That's not something you'll have control over. The best way to setup spawns for Strongholds is just to place respawns in safe locations. Don't use any Spawn Volumes. Don't mess with Spawn Priority. Just let the spawn system do it's job behind the scenes.