Hello
The first player is the artillery observer or an infantry troup nearly close to the target. The second one is the mortar gunner. The distance between the mortar gunner and the artillery observer or an infantry troup is for example 1400 meters. The artillery observer or the infantry troup aren't able to see any flares or illumination bullets on target. If the artillery obeserver or the infanrty troup is closer to the mortar for example 300 meters, then they are able to see the flares or illumination bullets on target.
If we do tests with a virtual artillery support (without human mortar gunner), then they can see it... {F26786}