A short guide to getting the semi-secret weapon.
1. How to find out where it is
When you get to the lighthouse, go down to the basement and you’ll see a map
Here’s the map, it contains a three number code
3. Weapon overview.
The Undertaker is a semi-secret weapon. It’s a pistol with an ammo capacity of 1, so you have to reload after every shot. At the time of writing there are two different ammo types, incendiary bolts and slug bolts. Incendiary bolts set whatever you shoot on fire, and slug bolts do no damage but can shatter glass, light sources and activate buttons. It has an attached flashlight instead of a crosshair. You can see which ammo type you have loaded, incendiary bolts are orange and slug bolts are black, you can see which one is loaded on the side of the pistol. (pictured: incendiary bolt)
Thanks to Botul for his excellent guide, all credit to his effort. if this guide helps you, please support and rate it via Steam Community. enjoy the game.