The War for Bellum
A young cadet commissar
Macharius was only a young cadet when he was placed under the command of Commissar Castus as a cadet. He was a bit rebellious at first, believing all the stories about 1st Squad to be a exaggerated tale. It did not take long for him to be proven wrong.
The more he fought alongside the famous squad, the more respect he had for them. He earn their respect as well. Proving to be a capable soldier and good leader.
5 years later he is the executive officer at the Scola under the now Lord Commissar Castus. He has on occasion helped the local police forces, and Arbites as both are still undermanned on the planet.