Having understood a little about the principles of modding, I decided to add something of my own to this game. I came up with the design myself and made a model from my imagination. Skull helmet. Yeah, this is damn banal, but we have a skull on our flags, on medals, on emblems, and we even have the title of admiral skull. But there is no helmet. Therefore, here is a helmet with a skull :)
https://www.nexusmods.com/helldivers2/mods/102