We should be able to see the spawns of our alliance members. Would really help coordinating who spawns where as being close to your teammates is almost as important as how many metal spots we have.
Not only show spawns but also when a team mate decides his spawn, show an indicator on the planet or do an automatic ping or something, so you can actually see where your allies decided to spawn. That way you can even coordinate your spawns in public games and when spawning at one spawn, you can easily choose the right spots.
Most of this game is already replicated from Total Annihilation and that was one of the pros in having allies in the original game - being able to see where their every unit was. And honestly, it makes sense. I would love to see this added.
You can see where their units are when the game is actually playing. However, you can't see where their spawns are before the match starts.