Hard West Ultimate Edition

Load up scenario Method in Madness, on hard. Activate Combat Injuries with the X button, and Ironman with the Y button. Turn on gameplay mods Full Deck, Reaction Shot Disabled, Express Scarification, Luck for Kills, and Luck Regeneration to make things easier.

This is the scenario where you have the three expendable Persons in your posse, and you won't have to spend much time on the scenario map as long as you follow the main objectives.

There will be four combat missions, and your main concern will be keeping Solomon Delear alive, since he is the only essential character. If any of the Persons die in combat, they will be replaced when you get back to the scenario map.

Once you beat the final combat mission, the Achievement will unlock.