This page covers the 2012 DayZ Mod for Arma 2. For information from DayZ (2018), see Military Flashlight.
The Military flashlight is similar to the standard Mod:Flashlight, but emits a red cone of light that is much harder to see and doesn't penetrate walls as badly. The light is similar to that of a red chemlight and is much less likely to be seen by distant players than the regular Flashlight.
As with the Flashlight, it occupies a toolbelt slot when not in use and must be equipped to the sidearm slot via the right-click menu in order to be activated with the default 'L' key.
The reasoning behind the Military Flashlight using a red lens is because red lenses emit the least amount of light of all shades, making it easier to use without revealing your position.
See also Mod:Flashlight.