one of the earlier levels in the campaign, where you are trying to save the colony (mar sara i think) has u walk up to the command center of the colony, and then you instantly rescue the entire base. i know that you can make players rescuable but how do they do it where you rescue the entire base at the same time? i dont want to just use "give units" because i want the units to maintain their original color

If you rescue a town center, you also rescue all of the other units owned by the player that formerly owned the town center.

It isn't a town center. It's the Start Location for that player.

lol someones thinkin age of empires/mythology? haha but thanks