Hey all you want to do is grab the hacking device then go rape train in the bio-dome until you hear the girl say "warning excavator _____ will cause decompression in tunnel 6" it dosnt have to be tunnel six but if you go back to the first room with the hacking device then you will see one of three little consoles flashing with a green light. you just have to go up to it and hold x it will start hacking it and after thats done it will say "Excavation ___ control restored" you just need to do this to all three of the excavators in one game. if you still dont understand i can help you if you want i'll be on a bit later tonight just add me GT: Strict Limits Hope i helped.