Now I know that you can technically use it as a spear and the hammer head even works as “wings” to stop the spear from penetrating too deeply and getting stuck, but let’s face it, most people who go trough the effort of making a Lucerne over a regular spear will want to primarily use it as a heavy battle hammer for their badass strength characters to breech heavily armored enemies defenses, just like it was constructed to breech plate irl, and only use the spear end against fast and/or small, physically weak enemies like wasp mutants and zombie dogs that would be difficult to hit with the hammer or to keep enemies at bay away from you.
I feel like the lucerne, homemade polehammer and fake lucerne should be moved into the Great Hammers category or at least be split off to use both the Polearm and Great Hammer skills at 66% efficiency each.