While this trophy will appear through natural story progression and doesn't really need a guide, it's worth pointing out which mission will trigger the end of the Chapter in case you need to mop up some missable activities for other trophies, some of which are limited to specific chapters.
*** Spoiler - click to reveal ***While the last mission is technically The Battle of Shady Belle, it starts automatically after Blood Feuds, Ancient and Modern. So get everything you need wrapped up when the latter mission becomes available from Dutch at the camp.