Yeah this is annoying, using a higher gamma and a few other settings gives you a big advantage. If this was Quake or some other arcadish shooter I wouldn't care at all but since it's supposed to be realistic and PvP is possible it's not fun to know that some will use this to their advantage. It's simply cheating in my opinion. I'm pretty sure anti-cheat-software like Punkbuster and VAC can enforce settings. Cant BattleEye do it too? There are standards on how your screen should be calibrated (gamma and brightness) so that graphics (photos, movies, games..) should look the same on every monitor. But it's mostly artists that care about this it seems. My point is that the default/enforced gamma and brightness in Arma should be calibrated/forced around these values. Grass and shadows should also be forced to at least some minimum setting. Sure you might lose a few players with really shitty computers (at least with forced shadows and grass), but if it's the case it's really time for them to get a new computer. Advantage by settings is simply not for realistic games.