...Important NotesOnly change the map AFTER you see the message "Go To: <map name>" not before. If you cheat and warp wherever you want then you will not be in the correct location in the map. And read the map name carefully and warp to the right map. Blind Lair, Hive, and Lightship are all non linear unlike the first 3 levels.Open the console (with the ~ key) and type "call help" (no quotes) for a list of all console commands.Type "call dif0" to 3 to change the difficulty in the console (0 = Easy, 1 = Normal, 2 = Hard, 3 = Hardcore)