informed us mikey
released his mk4 nvAdjust addon on the Comrades in Arms forums
This is an addon that enables you to adjust the sensitivity of your night-vision.
Quote mikey :
You can either adjust the sensitivity manually or you use the automatic mode (default arma) which changes it by itself.
I first saw a feature like this in ACE, and many people have loved it ever since, but me and numerous other people always missed it while playing vanilla ArmA.