While trying to fix my Christmas pic, I also made this.
A few squads of my stylized Tankmen heading out to battle, in it you can see four variations to the standard helmet:
-Visor- typical face visor, displays HUD and other important info
-LRS (Long Range Scanner) - sniper variant, includes an advanced sensor package that links directly with rangefinders and trackers in the rifle itself
-Full faceplate- a full faceplate, show everything that the standard visor shows, but has a more advanced comm system and protection. New Standard Issue, but of course the Visor is still used anyway.
-Goggles- Someone smashes their visor on something, so what do they do? Improvise a pair of goggles to protect the eyes. No HUD or info displays, but the comm unit still works. Usually.