It is the Magneto helmet from Marvel Rivals. FIrst i want to thank you guys for providing the reference photos from the game. I designed this one to fit a head of 585 mm circumference, and it is made in a way it will not be too long or dorky when put on. Included is also clean and the "damaged" version with the scar that we see in the game. And you'll see the front detail version separate as well :)
Stl files available on MysteryMakers patreon: https://www.patreon.com/posts/magneto-helmet-118536573