Honestly I thought this was pretty clever when I came up with it. Caitlyn is a part of a long generation of unicorns, known for honing a technique of the blast. Pent up magical energy is let out in a single shot, giving it properties of a bullet. I don't think horses could easily operate a rifle, so I thought interpreting it through magic would be easier.
I imagine her build would be like a Ferghana horse, slender-like.
I wanted her cutie mark to look similar to the Kiramman's crest, but not completely. To still have some more personal embellishments like scales and spears.













