There is a way to finish raid in 2 minutes, i guess it has to do something with razor checkpoint.
Before TU 8 people were glitching completions to dominate leaderboard with razor checkpoint and in year 1 there was a glitch to save 30 seconds in tunnel, something to do with resetting the raid while one person was in loading screen, all top 10 teams on leaderboards except one team who posted video of their run did it so year 1 completion leaderboard are trash pretty much....