I was playing with friends and lagging a bit behind on the end mission. they ran ahead and the final monologue was cut a little short. idk why this was, maybe different trigger points based on player location, but the end audio sounded like there was more to it but was cut short by the end credits.
without giving spoilers, is there any way I can replay it or must I host the end mission to hear it again?
As far as narrative goes, some of them you can listen again, if you open Log, select the correct mission and look for Mission Items at the bottom right. E.g cassette recordings, radio transmissions. What you can not listen again, are NPC chatter to you, over walkie-talkie, during the mission.