On a uniform of the Soviet submariner there are following signs of distinction:
Military rank (a chevron + shoulder strap on shoulders)
Military specialty (staff on the left hand)
I reflected staffs in a panel of sailors, but for most of players the concept staff isn't known, on it it was necessary to call them chevrons.
![](http://i.imgur.com/ZYyCYlC.png)
- gunner
![](http://i.imgur.com/4CENMLG.png)
- electrician
![](http://i.imgur.com/pwp0bWv.png)
- signaller
you correctly recognized all