It seems to me almost every single one of the main Alpha Centauri missions is bugged. The Undine mission had me do it three times. If the admiral doesn't follow you she does not register as attackable. The other quest is the bomb disarm and crate mark quest. Just killed everyone myself after my bridge crew bugged out, and low and behold there was no crates to tag, only bombs to disarm and scientists to save. So now I have had a bug on all the main missions I have tried so far in this sector, just to let you know. I would check the exact names of the quests but the servers are down.
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