A German FO team. Terrain mod by Aris and German camouflage from SJS-Vein.

A forward observer (FO) is an infantry team with special training to call indirect fire support of all kinds, including mortars, artillery and air support. Air support and many kinds of the heavy artillery can only be called by FOs. In the German army FO was called Vorgeschobene Beobachter (VB).

The wiki has an article on Tactics for Artillery Observers.

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