I have a C-More on my AR-15 and even after 3 full days of a carbine course (1500 rounds fired and rolling in the dirt and mud with a helping of dust and sand) the optic was not as hard to look through as these. The problem is the dirt and dust showing on the optics is in the wrong focal plane so you see clear dust particles when in reality you would see some blurring or darkness, not a clearly defined dust particle or speck.

The reflection and washout as noted above is another problem. For long range optics, the Nikon Monarch X I used on my long rifle is actually more clear than anything I have seen in a game, ever, and it is a low end optic by comparison to the nicer military grade ones. It will amplify light in dawn and dusk conditions, whereas the optics in game will turn everything black. Remember, the objective lens is gathering more light than your eye would normally get, so it can actually increase light transmission for certain situations.

I can take some pics through both optics for more clarity. I can even 'dust up' the C-more to explain the focal planes better if that would help.