Variant Three of my helmet selection.
The Guardian. Features 4x IR vision on the Blast plate, placed so it can be moved up and down at ease. When closed, IR is displayed on three different screens. When open, HUD is off. Entirely closed in and has its own re-breather inside the helmet. Also includes double padding on the base and frontal part of helmet.
Predecessor to the Guardian, the Aegis
Stealthier, sleeker variant, Variant Two, the Advantage