Marcus and his father, Claudius lived in the small village of <please suggest an appropriate borderland village>. Claudius, and his wife Polonia, had moved there when Marcus was only an infant, but Polonia died shortly after they arrived. Claudius worked as a lumberjack, supplying the village with wood for building and firewood. As he grew towards manhood, Marcus came to realize that his father was the largest man in the village, and shortly, realized also that he would soon grow to be as large as his father, maybe taller. As Marcus grew, so did the village, and so he joined his father as woodsman.
So things passed until Marcus' 15th year. One day, shortly after his 15th birthday, he and his father returned from the woods to discover the village on fire. When they ran to explore, they found most of the men dead, and most of the women and children missing. Under one of the bodies, they discovered one of Marcus' friends, Jontha, a smaller boy, unconcious. He told them of the raiders, how they attacked, and he was knocked out.
Claudius' face became infused with the red of a terrible anger. He marched quickly over to the burning house he and Marcus had shared, and began to chop at the supports, after a couple minutes of enraged strokes, he tossed his woodaxe aside, and launched himself physically at the side of the building. After a tense moment, the house gave a mighty groan, and collapsed to the side. Flinging some logs to the side, Claudius pulled a mighty greataxe from a hidden spot beneath the floor.
Turning to Marcus, he said "Take my axe." Getting the attention of both boys, he said "Do you have your slings...and plenty of bullets?" When they both nodded, he added "Very well, lets hunt." The next week was the most horrible and exhausting of Marcus' life. Up before dawn and moving until after dark, Claudius set a brutal pace. When they finally caught up to the slavers, the boys were given a crash course in guerilla warfare, as Claudius showed them how to pick off stragglers and scouts with their slings. Finally, the time came to finish it, and the 3 of them attacked the remaining slavers. Claudius led the brutal attack, Marcus joining in the hand to hand, and Jontha staying at the edges. They won, but Claudius suffered a fatal stomach wound. Before he died, Claudius gave Marcus his axe, and gold coin bearing the symbol of an axe. "Take this to the town of <please fill in>, to the Order of the Axe. You werent meant to be a woodsman, and they will train you. Do this for me."
Ok, I think that about covers it. The Order of the Axe is a small mercenary organization. I kinda liked your JANISSARY class, but clearly this character should use an axe (specifically a greataxe). I was thinking that a retired Jannissary might have started a version of the Order of the Sword focusing on the greataxe (ie same class but replace greatsword with greataxe). If this doesnt work for you, I'll just put together a workable multiclass, maybe fighter/barbarian/rogue.
Let me know what you think,
Thanks.