First off Marduk, shotgun isn't a mod, it's a script, having nothing to do with mods, second of all, there is no way to shoot the groin correctly using shotgun.lua. The groin is connected to 3 joints, and has no joint that can aim it straight forward. The only way to shoot it would be to decapitate the groin from the left and right glute, and split the abs from glutes and lumbar, and set a force to shoot it forward on the next frame. So it is most likely possible in a script, but wouldn't be practical.