Sniper, Can_Stalk abilities?

[pappagoat]

Gents,
Looking through the unit_stats_land_tables with the latest Pack File Manager. I saw that the two columns after the hide in buildings columns are labeled can_stalk and then sniper, both with True False options.

Does anybody have an accurate idea of what these do to a units performance?

[JaM]

Sniper trait allows to fire while hidden - If your unit is not spotted, enemy wont be able to target it directly,and will have to get close to actually spot them (but with muskets smoke gives you approximate position) Bows in same situation would be much more annoying as smoke will not give away their position. (but its possible to spot arrows)

Can_stalk should have something to do with ability to see where your unit went on campaign map, but i'm not 100% sure