Resident Evil Zero/The Ecliptic Express

Start
Take a left into the door. After the cut scene kill the zombie behind you and try to knock down or kill the train conductor. The train conductor is the zombie wearing a hat. It's okay if you don't kill him, just don't kill all three zombies, just two. Enter the door behind the first zombie that you killed and reload.

Now go all the way down the hall until you see a dead man. Interact with his body to find the train key. Now after the cut scene, aim immediately and keep tapping the fire button to kill the dog. Then walk forward and another dog shall appear. Just aim towards it and shoot it to death. Now reload, and check Edward's body for ammo. Exit back the way you came.

Now from here shoot every zombie you see to death. Reload in your inventory screen for faster reload. When all 2-3 zombies are dead, head to the door across from you.

Run to the door on the other side. Don't worry about waking zombies. Discard the key.

After the cut scene head up the stairs. After another cut scene head back down.

When finished with the cut scene, give all ammo to Billy and drop Rebecca's pistol. Drop Billy's knife.

Now as Rebecca, tell Billy to wait and go to the end of the room up the ladder alone.

Move Rebecca all the way to the front of the train and connect the broken fuse.

In this room, collect the herb, ammo, and key. Send the key down by using the device in the corner.

Billy's Journey
Go downstairs.

Now go the electronic door, move to the right and collect the key from the device. Take the key, equip gun, and head back out the electronic door and into the door Rebecca came from.

Now if there are zombies awake when you enter, kill them. If not, run all the way to the other side ignoring the waking zombies.

Run all the way to the other side ignoring the waking zombie.

Run to the end of the hallway entering the only door on the left. Discard key.

Push the red button close to the door. Climb up the ladder.

Make your way to the door on the far side.

On your right grab the pick. Now go to the only door on the right.

Pickup handgun and shotgun ammo. Grab the shotgun and equip it and exit.

Go back the way we came.

Go to the ladder.

Boss Fight
After the scene, back all the way up to the door you came out of and aim down. When the scorpion comes close, fire one shot. Don't tap the fire button. Reload in the inventory. Keep doing this. When you run out of shotgun ammo, drop the shotgun. Equip the handgun and repeat what you just did with firing the shotgun. Inventory reload. When the scorpion is dead, enter the door you came out of.

Help Rebecca
Go back the room you got the shotgun from. Grab first aid and leave.

Now go back the boss fight room. Go all the way to the other side and grab the panel opener. Go down the ladder.

Grab the briefcase in the closet left of the green herb. Exit.

Now go all the back to where you got the train key from Rebecca, killing any zombie in the way.

Put the pick in the device and send it to Rebecca. Go the locked door in the back, and to the right, use the panel opener on the vent. Enter.

Shoot and kill the dogs. Exit through the door behind you when you entered the vent.

Run forward and kill the zombie that pops out. Go back to the dog area.

Switch to Rebecca.

United at last
Grab the pick, use it on the door. Enter.

Go downstairs and go to where Billy is.

Regroup and give Rebecca first aid. Now switch to Billy and have Rebecca follow. Pick up the shiny object on the floor in the dog cage and combine it with the briefcase. Go through the door closest to where the dogs were.

Have Rebecca stay. Move her to the green light and press the button. Move Billy to the hookshot and grab it.

Have Rebecca follow and exit.

Forward through the opposite door.

Forward and past the electronic door, enter the door. Kill any zombie in your way and exit to the opposite door.

Now look the right side of the screen. Near the window use the hookshot as Billy.

Shoot the zombie to death and grab the case on the floor. Examine it and open it. Combine with the briefcase. Open the case. Now exit the door. Go down the stairs to the left.

Have Rebecca follow. Go to where you first found the key next to the dead man.