yh i had this question like a week ago myself. and i just beat the game after talking down the Legate

. Yeah I know, OMG i didnt kill him yeah but....i woulda died. Arcade ditched me, Boone ditched me, and all my "support" stopped on the bridge. the boomers did their part though. so by the time I attacked the camp, all I had left was Cannibal Johnson, Doc Henry was with me but didnt go into the camp with Lanius for some reason. idk where the other remnants went. no reason for Arcade or Boone to ditch me either, one second they're with me in the dam, next they're MIA.