I'm not sure what causes this to happen. My best guess is during the time Tanya walks onto the bridge (being technically on land and in air), the game isn't sure she's alive. It's at about the same time the internal timer starts to monitor her status, and if she's flagged as dead by mistake, the mission is over from Tanya dying on the inside.

Until the cause is known, I'm opting to exclude the time wasted caused by this glitch in full campaign runs. The segment can't be spliced out of the video, but it can be removed from real time and not penalize game time.

westwood plez fix OpieOP