“Frida’s Dilemma” – “The Choice” [1st campaign, 5th mission]

Oops, sorry, I tried to finish the game and realized that I either underestimated Freya or overestimated the AI's intelligence. In general, if you capture the garrison right away, you can progress normally. It's not that difficult. The only problem is that Andreas can't be recruited for some reason; no matter how many times I defeat him, he doesn't appear in the tavern, but he's back with the red faction on the next turn.
P.S. I did have resurrection available; something must be wrong with my memory.