1257 AD Middle Europe mod is a completely new mod for M&B, which is aiming for the historical medieval Middle-Europe. We want to make a historically correct mod (unit names are in real form by every nation), but not an unenjoyable one!
If you're looking for a Warband mod, you should move to Anno Domini 1257. If you're looking for a Mount&Blade; mod, congratulations, you've found a decent mod. It changes some stuff, but it feels like it is a very early alpha for a greater mod or a realistic Native module.