Title: Baldur's Gate 3 - Recruit Minsc
Description:
The player meets Minsc in act 3 of Baldur's Gate 3 for the first time. The Absolutists put a tadpole into him, so he is controlled by the Absolute and threatens Baldur's Gate as the so-called "Stone Lord".
You can fight him and the fake Jaheira (real name: Gozz) in the sewers below the city. The real Jaheira pleads to let him live as part of the "The High Harper" quest, so it is recommended to enable non-lethal attacks or use non-lethal attack skills like "Weaking Strike" to perform the final blow.
After that a dialogue starts where you can persuade the Emperor to also protect Minsc from the influence of the Absolute. If you have Jaheira in the party, no skill-check is required.
Then Minsc storms away to look for Boo, his miniature giant space hamster.
And with that Minsc and Boo joined your group.

I also stopped Roah Moonglow from escaping.
Link: https://www.digioso.org/bg3_minsc