Metro Exodus - DLC "Sam's Story", Playthrough (No Commentary), pt.1

First time playing, I hope I can consider this a playthrough. I was captured by some bandits and taken to a submarine to the captain of the boat, named Tom, who is another American. Sam, the character I am playing, is also an American and strikes up an agreement with the captain of the sub to find the old captain of the sub and return him, amm for the agreed reward of a one-way ticket back to America.