How do you get the force field generator ?

[emp166]

I'm stuck on this one. Thx

[battlecruiser2004]

The combination: 131223112. It's actually posted on the wall near one of the yellow train cars, but you won't see it standing on the ground, only if you stand on the train itself, jump in midair, or pan the camera up with the binocular ability.

[emp166]

Ok... Thanx a lot. I didn't notice you could hit the valves...