Unsure how to upload multiple photos to a report, so I made this one screencap illustrating multiple redundancies operating at the same time. NV Goggles over opaque HUD pieces while looking into the Red Dot portion of the combat sights should illustrate how numerous these redundancies can be, especially when the feed for these HUD pieces is coming from the camera clearly visible on the helmets left "temple/cheek".
EDIT- Uploading multiple photos is possible after sending initial report, sent others to illustrate inconsistencies.