So I stumbled upon something i believe is worth sharing. Directly after you lead the troops at the battle of Concord your mission objective is to speak to James Barrett. Cross the bridge and as soon as you get to the other side there will be 3 bodies laying dead. Hold B to loot the middle one and it will loot it over and over and over. Modding money on this game isnt very hard, but if you want to tape down B button while you sleep you can make some easy profit without modding. Enjoy.
Edit: So apparently all three of the dead bodies give infinite loot lol. and i reloaded the checkpoint several times, it worked for me every time.