It would appear that there is a rare issue with bots losing all functionality during host changes. I was on Security Tower as Resistance, me and my bud were almost done escorting Nechayev, he was just past the cement barriers starting down the ramp to the Resistence spawn when the host on Security rage quits. The host change caused a new deployment countdown and for both sides to return to their respective spawns.

I thought everything was fine, so run back to Nechayev with my bud and we run into the full security force. I get gunned down, look for a medic, but what do I see? Not my team. All the bots for Resistance were still back at the spawn point. They had only moved to the first set of doors you escort Nechayev through, and stood around waiting for him to show up despite the fact he was already on the other side of the map, mere meters from the exit.

Shortly after more players joined on the Security side and there was no way two lonely players could take on four with four bots. Needless to say a sure win amusingly turned into a guaranteed loss. Who knew the game could be so easily broken with a host change?

Yep, they get reset to the behaviors for the begining of that part of the mission, so they go to the doors and wait for you to escort Nechayev to you, which of course will never happen because you've long since passed them.