You have to complete the missions on the run and escape the facility.
The map requires AVA mod installed
Close the main gate and reach the next room.
Choose a path to head back to the center of the facility.
Use C4 to demolish the bridge and clear away to the other side of the station.
Escape from the facility through the tunnels, evacuate from the helicopter.
This is a fan map, it does not exist in the actual A.V.A game.