Sharpshooter bonus to "parent unit"?

[herm]

I'm confused about the "parent unit" thingie.

Would I have to have a sharpshooter unit in every division (even those that are stacked together) to get the bonus?

[boajack]

Yes you need to have one in every divison to get the bonus for all units. A general with the surpriser skill is also a good idea to further increase your chance of first fire.