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Fallout: New Vegas Game Add-Ons (DLC) Hints
Where can I find the light switch 02 personality holotape?
1 of 7: Fast-travel back to the Magnetohydraulics Complex, then head east down the narrow valley. (Watch out for a bunch more robo-scorpions suddenly appearing out of nowhere and attacking you.)
2 of 7: When you reach the train tracks, turn left and head north until you discover the Big MT North Tunnel location.
3 of 7: Approach the tunnel entrance from the left side of the train car that's next to it so you can get past it.
4 of 7: Use the big gate to enter the actual tunnel, then crouch down and use a scoped weapon (if you have one) to shoot out the overclocked turret that's to the right of the wrecked train car ahead.
5 of 7: Or you can skip shooting the turret and sneak over to the nearby door on your right.
6 of 7: Past the door is a small room with some metal shelves. The light switch 02's personality holotape is on one of the shelves, next to toolbox.
7 of 7: See the Light Switch 02 info for more details on how to use the light switch 02.