Can I use Green County Immersive without Green County?

Yes.

It's possible to repack Green County and Green County Immersive?

No.

Can i use Green County and Immersive on a monetized server?

Yes, only if you server is displayed on the official approved servers list.

I have white (no textured) hiking paths, it's a bug?

No, repair your mod (Green County) and check your DayZ Files, that happens sometimes after an update.

Does the card have lore?

Yes, and no, we don't want to impose any particular direction, like that server owners can make the map their own background, and create their own lore. We believe that extreme lore can limit the possibilities. Nevertheless, there are many EasterEggs to discover and clues to areas… Future updates will reinforce this aspect without it becoming blocking.