In the co-op game sometimes players never need to go onto the center board so the resistance counters there never pose a threat. I was wondering if anyone has some ideas how to make the resistance counters from that board move onto the other ones? Or perhaps develop an idea that forces players to have to venture to the center board.
A simple "you have to have X many points AND conquer the capital" might be too much. "X many points spread evenly across the Y boards" might be better. A moving rule could be "resistance counters move to defend an attacked adjacent space if that space has none and the moving counter is not adjacent to any saucers".
What if you had to conquer the capital in order to win but needs X ammount of points first before you could do so?