Enchant Gunner: Bullets and Magic EnGun

Year 2048, the current World War, or known by the general public as the Great World War is still ongoing for over 10 years now and is almost reaching its peak. The soldiers are giving their all and risking their lives to protect their loved ones.
Among them is Hans Schmidt, the said hope of their country as its ace. A 21 year old soldier who cannot help but poke his head to every complicated situations and usually ends getting involved with troublesome matters.
He had lived his life just fighting for whatever reason he had in the battlefield, growing up within such harsh environment.
But for some unforeseen reason, he was transported to another world.

How will our ace soldier fare in a fantasy world that defies common sense from his former world?

(Editing the dialogues at the moment. I'm just adding the character initials so there are really no changes in the dialogue itself. Well, some corrections if needed.)