This is the final map within the episode. Since CEDA isn't around to evacuate you, you need to make your own exit.
Exit the safe house, walk across the third floor bridge, and enter the elevator. As the elevator lowers, you will see the positions of the gas cans highlighted, and will have some time to plan your maneuvers. The number of cans required varies depending on the difficulty; 8 are needed on normal, and 13 on expert.
In multiplayer matches, you may consider splitting into two teams; the first team will head to the second floor, and the other team to the third. These two groups will throw the cans to the first floor (being careful not to throw it on the kiosks) before returning to the bottom floor.
Once reunited, collect the cans and pour them into the car. Once you meet your quota, all survivors should approach the car to escape.