How to equip DLC weapons.

Pretty self explanatory, go to options, you can either do this from the main menu or in-game menu.

Just clic on the "Game & HUD" section of options.

In Weapons Settings, right below Auto Change is Melee Weapon.



A list of weapons should be visible once clicked.



Just clic on whatever skin you wish to use, hit Ok and you should be good to go.

Now you can change your weapon skin whenever you want, it's kind of disappointing that they do not affect the game in any way, all though it makes sense.
Eitherway, this is my first guide on steam, so...yeah. I hope it helped you. I felt the need on doing this guide because lots of people were asking how to use the DLC with no answer (at least most of the threads), anyway thank you for reading!