Thanks for the tips, but I like bullets D: I just don't think it's realistic that a bullet behaves the same way as an arrow.
Oh, also, while I'm posting, what are the "Army of Light" and "Army of Darkness"? I raided an enemy village and noticed my relation with the Army of Light deteriorated.
In order to encounter the armies of light and darkness, you need to play on 'Mommy' difficulty. The army of light is basically a fanatical group of templars, and the army of darkness an evil horde of cultists. Even then, you can choose when they show up (Day of Doom), either on the first day or the thirtieth day.
Apparently the hardest thing to do is play on mommy difficulty with a peasant revolutionary and day of doom day 1.
Also, while this mod may have fantastical parts to it, it's also a tactically realistic mod, which is what xeno intended for it. Unfortunately, Mount and Blade's engine doesn't allow you to have perfect bullet dynamics just because of how it's built. The most you can do is create a projectile and increase its speed a hundredfold. What is a bullet but a more strongly-propelled, differently-shaped arrow?
On an off-note, if you want perfectly accurate projectiles, look elsewhere. Bullets do drop over time. The maximum range of on a M4 Carbine is about 500 metres, with an M16A2 rifle having an effective range of 600 metres, and both these statistics are if the guns are tilted upwards at maybe 40 degree angle. And these are modern age weapons, not the primitive gunpowder firearms of the age of Blood and Steel, so one of the guns in the mod would have a significantly lower effective range, as well as accuracy. Altogether, I think it's done quite well.
(In Xeno I Trust)TM