Some peeps have been asking me about this recently so I'll share the old wip of it. It's not a proper release and the original animations have an issue when you get injured/break a limb.
Model by Gmoske
Requires Caravan Shotgun by Deadpool with Hitman's animations
https://www.nexusmods.com/fallout4/mods/28399
Mossberg Maverick shotgun: https://drive.google.com/file/d/1zPOWts1cS5cB3GKK5GYZ18YeSCc-YXtA/view?usp=sharing