[KraMax]

My error.
Absolutely with you it agree are different systems.
The chassis at these systems identical - MT-LB.

From the point of view of directly artillery investigation (FO) - more all approaches to it is SNAR-10 (Stantsiya Nazemnoy Artilleriyskoy Razvedki - in English = station of land artillery investigation) and series systems PRP (Peredvizhnoy Razvedyvatelniy Punkt - in English - mobile prospecting point). Systems 1V13... 15 are systems of command and a fire control. They and are called - control systems. But they too can calculate a site of another's artillery, etc.
I will agree that it is enough complicated question with these systems and I could not find till now exact data how actually these systems were used.
But I think till now, that if you wish to leave these systems in game it is necessary to change at them name ACRV - on 1V13 or 1V14 etc.