You only ad progress cubes to the board the first time you contribute to a complex not the first time you place a building, making it a lot harder to get the cubes out early
Actually im pretty sure when you build a complex using the advanced building actions you're still using tech (so if someone else owns it they still get a free upgrade or an oxygen) the benefit is it allows you to bypass tech level requirements by sending workers to your work area. So like you can build a level 4 complex even when the tech is only at level 1 by sending 2 workers to your work area.
Wow! I was actually playing it correctly in the first place! I was confused by this article: boardgamegeek.com/thread/2335360/article/34049232#34049232 but I see now that you are correct. I'm going to have to edit this video! Thanks XTCyan - good catch!
Edited 22.05.2021 I hope you will like the result XTCyan. You have really helped out the channel and potentially saved a lot of people from being confused by my mistake.
That's a Northern Ireland accent but yes, surely welcoming ships from earth is not the only way to bring people to Mars. Urgent wish for children action? Should it be in orbit or the on the colony?