I'm the original author of the Abandoned 4 Good campaign that includes the football map that's seen within the screenshots. Just recently, I discovered that a reuploader by the name of Lilith or Tiffany uploaded a mesh that I made including the field to be in their own "stadium-like" map. 

I'm not pointing out that the idea is entirely original nor claiming official NFL textures to be my own. It's moreso the reuploader trying to claim that it's entirely theirs without giving me credit nor providing an original link back to where it came from. 

This is my original campaign in which the goalpost mesh was used for: https://steamcommunity.com/sharedfiles/filedetails/?id=2924571710

This was the reuploader's link on both Gamemaps and the Steam Workshop (which is now hidden from view). 
Gamemaps: Jacksonville Jaguars Stadium

I attempted to message the reposter but they had me blocked but I was still able to send a private message through their Steam group. 

I'd just like for the maps to be taken down rather than bombarding their messages and waiting for them to eventually respond. 
Their repost: https://www.gamemaps.com/details/28997

@AlfredENeuman: Definitely sent the report to them! 
I'm not disappointed that someone had a great idea to put a fresh spin on something I made. 
It's the conscious decision that they made to upright steal people's content without ever crediting them or trying to avoid taking accountability for it. 

You have a great day too! Thank you for the response :) 

@kurochama Thank you! I didn't know about the first one until today. :D