Solder

Technically a marine, but really one of the less talked-about assets in the Equestrian military. A high functioning psychopath, he will do terrible things in the name of serving Equestria, as his nation is the only thing he can truly claim to love. Outwardly affable and pleasant, but in truth an objectively bad pony who does Evil for a Good cause. His psych profile is interesting... and classified. Pegasus.

Personality
One part scientist, one part old warhorse, Solder tends to come off as demanding and gruff at least seventy percent of the time. Recruits make the mistake of assuming he's simply a jaded, aging pony, but those who've served with him for any real length of time recognize that his manner comes from a deep abiding concern for the well being of everypony around him, especially given the extremely dangerous job he is burdened with. Solder brooks no nonsense from those even nominally under his command, knowing full well how easily a lack of focus can get a soldier -- or even scientist -- killed. This is not to say that he is humorless -- though that humor does tend to come in the form of "teachable moments" -- merely that years of experience have taught him some harsh lessons... lessons which he hopes to ensure the younger generation can learn in a gentler fashion.

Biography
Solder was always a precocious foal, demonstrating a lust for knowledge and aptitude for tinkering before he could even coax a spark from his horn. He first frustrated his parents by constantly breaking out of his crib, followed it up by making improvements -- sometimes dangerous ones -- to his toys, and finished by taking up formal apprenticeships as soon as he could convince somepony to take him. He got his first taste of battle at the tender age of Nineteen when the alchemical laboratory he was apprenticing for was raided by pirates, leaving his master destitute. Deciding that he had no taste for combat, Solder decided that it would behoove him to ensure that combat was very, very short. So, taking his generalized knowledge of engineering, magic, and alchemy -- and no small quantity of disregard for the word "impossible" -- Solder joined the Equestrian Remnant navy and began a long career of building things that keep his nation safe. Now assigned to the Nocturnal Thunder, Solder is closer to fifty years than he'd care to admit and getting a bit crusty in demeanor as well as under the hoof. Regardless, he brings with him a wealth of knowledge, experience, and tools with the idea in mind that maybe, just maybe, this mission will make things better.

Skills

 * Innovative
 * Experimental Engineering
 * Alchemical Sciences
 * Weapons Design