I've played the mission "cage of fire" twice and experienced huge difficulties with my officers. At some point they just freeze at a certain spot and refuse to walk on. Or they are running back and forwards on the catwalks and would't follow me any longer. They even committed suicide jumping into the fire trying to follow me.
At the first try I only managed to get one single officer to the end battle. The others were either stuck somewhere or jumped into the fire. At the second try I only lost one but it was extremely annoying to get three of them to the end.

This mission needs some serious review and bugfixing.