This certainly looks like a very promissing project! Also, great work from everyone involved! ^-^ Antistar, I don't know if you already know about this (And if you do, then sorry for bothering :P), but there is a site that has information about the muzzle energy of many different kinds of bullets. I don't know how precise those values are, but if you delete the last number of those offered values I believe it can create a somewhat consistent damage system. For example, the 5.56x45mm, 7.62x39mm and .308 Win are listed there as having 1,196 ME, 1,521 ME and 2,997 ME each. You can delete the last numbers and get damage values of 119, 152 and 299 respectively for weapons that use those kind of ammo. Maybe the values need to be tweaked a bit, but at least it can give you a direction (If you haven't put much thought about it yet, that is). There is also this site talking about the muzzle energy of shotgun shells. I'm actually working on a personal mod that has some similar objectives as yours, so I thought that sharing that information could be useful in some way. :) Also, if I can make a small question... Do you think it will be possible to make enemies use different types of ammo? Or will this be an ability that only the Player can do? Again, great project! I'm really curious about what will happen to it! ^-^