After Saunders shoots the sniper, he turns around and runs back to Francoise. She is on her back in the distant shot, but in the close-up shot she is on her left side.
When the GI in the jeep is shot by the sniper, he is brought to the doorway of a building and Doc tries to help him there, instead of taking him inside, where the sniper wouldn't be able to shoot either of them.
The sniper always stashes his rifle in the same hiding place in the same building. He also always shoots from the window closest to the opening in the wall where he stashes his rifle. Somehow it never occurs to anyone that the shots always come from the same direction, the same building and the same window.