Once again I find myself bringing the starting rifle or the Khvostov 7G-02. From an game I can't quite remember you had the ability to chose new weapons or have an evolving weapon. I think if the Khvostov became such a weapon you could get attached to your gear and tag it. As such that rifle is my 'Destiny Rifle' as linked in it's description "An ancient weapon, battered and worn - but it still fires true. Perhaps its been waiting for you." I wish so dearly that meant what I hoped it meant. That the rifle could have a bigger purpose :)