Run past and after you pass the sparking generator, after some distance turn around when Nemesis passes to stun him. When you leave the Subway Power Substation, Nemesis will ambush you. The first of these is on the ground floor of the Subway Power Substation, giving you Handgun Ammo. Now have the Bolt Cutters and the Lockpick, remember it's worth opening some locked areas along the way. Once you have thrown the Circuit Breakers, you need to backtrack to where we picked up the Fire Hose. Let's start with how to reach the train puzzle location. Where to go to bring the trains online in Resident Evil 3 Looking for something else? Visit our Resident Evil 3 walkthrough for more help. Train puzzle solution: How to bring the trains online in the Subway Offices Control Room.Where to go to bring the trains online in Resident Evil 3.This train puzzle involves observing a train map to work out which lines need to be connected to take survivors - and yourself - out of the city to safety. Bringing the trains online is the next step after throwing the Substation Circuit Breakers in Resident Evil 3.