Hopefully the information on this image is self explanatory. I hope this would be used for my airsoft team, but I doubt they'll bite.
For those that don't know, a specialty mark is a symbol used to specify someone's job / specialty on their ranking insignia.
In the Rorak storyline, Paloi and Grycea are close allies, to the point where their militaries are integrated.
To be used in real life on a uniform, I would print out on iron on transfer or cloth designed for a printer. Then, sew onto a velcro backing. This allows the patch to have structure and to be removable for uniform washing.