I'm sure. As I'm about to do.
You're ok, GoldSabre. The word "recoil" is not commonly used today to mean a unit retreating, and I don't think it's even commonly used that way by the military. But if you've read much from the Napoleonic period, "recoil" was used a lot to describe a unit that had been forced back. So, in period terms it's correct usage, and people might as well get used to period terminology.
I do agree that "artillery recoil" might be a bit confusing. I haven't seen it in the game yet, but it might refer to artillery "retreat by recoil" where the guns were not run up to their original position after each shot.
Hook