I had to houserule the game yet again, cause this - pretty potent - ammunition - could be fired from any type of device, which is ridiculous to me. My Jan Jansen will never switch to another projectile launcher besides FMB, truly ingenious device.
Are there any mods that can permanently 'lock' Jansen's crossbow to character of his? It would be simplest solution for the issue which was not taken care of for hmmm... 20 years? Noone seems to notice how overpowered these missiles are... Also, it seems ridiculous for them to be fired faster, or more accurately from totally different type of launchers.