I'll just put my protagonist, Zivojin forward and see what happens.
Summary:
Relatively strong considering he's been living in a siege for about 3 years now
Stocky build
Wears a flak jacket and an olive drab Adrian helmet
Armed with a Maxim Auto Gun (5.45x40mm) and a trench club
Not a very 'clean' fighter, meaning he's not above eye gouging or pulling a pistol in the middle of a fight
Missing two fingers on his right hand, he didn't get any physio-therapy or proper treatment resulting in it not being very dextrous at all. At most he uses it for firing a pistol or reloading a bolt-action
Notable feats:
Fought an Austrian cavalry officer that was much more skilled than he was long enough to pull a Broomhandle and put 6 rounds through his ribs
Killed a Hungarian soldier with a tuba by slamming it over his head until his head was little more than a paste
Ambushed and killed an Austrian soldier with a bucket of Acetone and melted his face
Smashed a Hungarian soldier's face in and fractured his skull in one blow with a 12lb pillowcase of pennies, wielding it like a flail
Killed a German soldier with a hubcap
Absolutely destroyed a Russian's kneecap with one blow from his club
Survived the battle of Novi-Sad, a battle so ridiculously bloody by the end of it they were fighting on piles of bodies higher than any man could stand
Let's see how the angry Serb measures up to the rest in this thread.