Thanks for the review!
It does not help that there are no tooltips to help, but the general idea is to radio in more survivors to be able to get the science done faster.
You’re right about having to wait for the science, even if you have more people. It’s just something I didn’t have time to play test enough and realise, while trying to balance everything else!
Saying that, the game was probably too big of a scope to have research/science in it as well, and be able to balance it properly.