I'm not sure which mission you are talking about.
Or rather, it does seem like you are talking about the post-campaign cutscene mission (bta1_m4_01.fs2). However, if you're able to fly around and see ship names, then you've somehow cheated into the mission. If you played the campaign without skipping missions, the cutscene will play. If not, it will just end-mission and send you to the credits screen in FSO.