Fallout 4: Guide to Finding Tesla Armor and Rifle [Automatron DLC]
Fallout 4's Automatron DLC, among other things, also adds a new Power Armor, essentially an improved version of the T-60 featured in the base game.
In addition to this unique armor in Automatron, it is also possible to find a very special new weapon, the Tesla rifle. Both can be acquired during the normal playthrough of the Automatron DLC, let's see how.
How to find the Tesla Power Armor and the Tesla Rifle
Start the Headhunters mission of the Automatron DLC. During the mission you will have to enter Fort Hagen to find the robot's brain. You will first have to deal with a couple of robots and raiders on the way to the fort. When you arrive from Jezebel, talk to him and make your choice. Soon after, keep going into the fort until you find a robot and a man in power armor (Ivey).
The guy in the Power Armor has the Tesla shotgun and armor, you get them after you take him out. Once you have your weapon and armor, leave the fort and continue the game.
As previously mentioned, tesla armor is nearly identical to the T-60, but works particularly well with energy weapons. As for the Tesla Shotgun, each shot with this shotgun can hit several enemies, and if your character is well leveled these shots can even be fatal.
If that wasn't clear enough, here's a video showing how to get the Tesla Armor and Tesla Rifle: