The Free Staters include the guy driving the car and the opposing sniper. The plot of the story is the sniper is watching the roof of the house across the street and he needs to kill the other sniper and get away before morning. One of the conflicts he got shot in the right hand, and was unable to use his sniper. This meant to complete his mission he could only use his revolver with his left hand.
The timeline of the story starts with The Sniper eating a sandwich on the roof. Next, an opposing armored truck drives up and a lady informs the driver of the Sniper laying on the rooftop. Next, he shoots the lady, but in return his shot in the hand from the opposing sniper across the street. Then, he treats the wound a forms a plan to kill the opposing sniper on the other roof. Second to last, he tricks the sniper and kills him. Lastly, he gets off the roof gets away after being attacked by the armored truck.
The mood of this story indicates that he is very serious about his job and needs to keep quiet to avoid being spotted by the opposing forces. He is injured in battle and he quickly recovers and turns the tables on the enemy. The overall mood of the story is a time of war and a wrong move leads to