After many research the system of the swords seems more or less solved. We don't have access to the following books, even though these might contain interesting details. Some libraries have them, not only Swedish ones but I remember seeing it in German catalogs for example.
Svärdet Och Värjan Som Armévapen by Heribert Seitz 1955
Svenska Blankvapen del 2 by Olof Berg
If you have them, you may help us taking some photos or scans. Not all the books but the relevant pages. We don't speak Swedish but some players might help translating. Google translate might help in general cases, too.
Not only the Swedish but getting German sources is problematic as well. These would be used mainly for western styled Polish and Prussian troops.
I checked the guards holding halberd in hand animations many people suggested long ago. There is a stand_guard animation, and if I replace this with Jacobhinds relevant pike_loop animation, all guards get it not just the specific guard troops. Every troop can be a guard. You can see for example dragoons standing at gates. They would also stand in the halberd shaft holding animation. I can make a separate halberd weapon for guards but it's not possible to replace the weapons of common soldiers with prop weapons.
So when somebody solves this issue and gives the detailed explanation, I will implement it.