Someone correct me if I'm wrong but you can create a respawn area and assign it to a certain team so that that team always respawns on the respawn points within that area no matter what.
Advanced Guide to Respawns A respawn area unifies the values determining where players respawn. It's very hard to understand. Maps with well placed spawn areas have a tendency to spawn players in an area where the least amount of players have died.\ Boots claims that is assigns spawn places to a specific team, I can neither confirm nor deny that, but it DOES NOT act as a area where players spawn, players will only spawn on spawn or starting points. V - Also true. Were your team dies is more important than where your team is.
This. That guide basically says it all, but to sum it down, respawn area connects x number of respawn points. If teammate dies in the area, chances are lowered that you spawn there. Then again, if a teammate is in it, you will have more a chance to spawn there.