Enter these with the 'map' code in the console. Press ~ to activate the console.

Code	Effect
ep1_c17_00	Spawns you at the beginning of Chapter 3
ep1_c17_01	Spawns you at the beginning of Chapter 4
ep1_c17_02	Spawns you in Chapter 4 City 17 after the first load point.
ep1_c17_02a	Spawns you in Chapter 4 City 17 after the second load point.
ep1_c17_02b	Spawns you in Chapter 4 City 17 after the third load point.
ep1_c17_00a	Spawns you in City 17 after the first load point.
ep1_citadel_01	Spawns you in the Citadel after the first load point.
ep1_citadel_02	Spawns you in the Citadel after the second load point.
ep1_citadel_03	Spawns you in the Citadel after the third load point.
ep1_citadel_02b	Spawns you in the Citadel before the lift ride.
ep1_c17_06	Spawns you in the last Chapter near the end.
ep1_c17_05	Spawns you in the last Chapter.
ep1_background01a	Spawns you looking in the car garage. (You are unable to move or do anything)
ep1_background02	Spawns you looking off into the damaged City 17. (You are unable to move or do anything)
ep1_background01	Spawns you looking up at the citadel. (You are unable to move of do anything)
ep1_citadel_04	Spawns you near the end of the Citadel.
credits	Starts you at the credits.
ep1_citadel_00	Starts you at the intro of the game.