I was playing HL-16-11 assassination and had 3 bots with me because I started early.
When I went to the first checkpoint where there’s a lock that requires everyone on the team to be there. 3 players connected and as I think for a split second the game thinks that I was technically 100% of the team inside the lock, the outer door closed and they connected on the other side where I came from. Making them unable to progress, and they had to die from fall to respawn in the correct area.