Ranger Combat Helmets are pretty underwhelming compared to how Chief Hanlon describes them. As is, they provide only a DT of 4. However, Hanlon describes them as having functional optics that have night vision capabilities and other visual enhancement. As such, they should logically provide the following:

* Switchable cateye / custom NV effect (may require NVSE)
* Count as eyewear (+1 per, +2 for four eyes)