Just thought this is interesting to those here who play combat mission. Threads on CMx2 spotting with real tests. Pretty high signal-to-noise ratio:
https://community.battlefront.com/topic/140252-steel-beasts-vs-combat-mission-t-72-visibility-test/
https://community.battlefront.com/topic/138227-some-tank-duel-tests-cmbn/page/5/#comments