Mayday training was recently held at a vacant building in the City of Neenah.
The firefighter's masks are blacked out to simulate the visibility in a real structure fire. They do not know the layout of the building so they have to work together to perform search & rescue operations.
They hold onto a rope to make sure they all stick together and this is their lifeline out of the building if something happens.
The firefighter is sweeping the room with a tool to search for victims. Remember, they can't see so they have to use something to help them figure out if there is a victim.
They found the "victim" and are working together to exit the building.