Artist:

"So, I once wanted to write fan fiction in EaW setting. And TO (Technologische Oberaufsicht) was a cover for the second, semi-secret army of the Changing Empire with the running name Deimos among those who know about the real purpose of this one. TO was simply a huge ground for experiments on doctrine, weapons, equipment, and although it had about 50 thousand members, it could do things. The second TO division, "Rubinkatze" consisted mainly of tanks of high mobility and armored cars. And yes, sometimes collaborators were recruited there, so ponies with this insignia are commonplace.
A cat is a symbol of this division for a simple reason. The favorite vehicle of its members is Sd.Kfz 234 Puma with some special modifications."