October has the most appropriate DLC with the Extreme Mode update. It includes new enemies, locations, challenges, and better AI.
You can purchase it on PSN here:
Frederick Guese is a video creator and editor at PlayStation Haven. A QA industry vet and has worked at Respawn Entertainment, 2K Games, and Activision-Blizzard. Frederick is working on being a narrative designer, writer, editor, and video producer. You can visit his Twitter, Youtube channel, and Instagram. He’s a big fan of Hideo Kojima games and JRPGs.