Do install the “Updated Unofficial Patch” that requires the Steam version’s executable. Stick to YUP v11.6 or lower.
This refers to the complete collection of add-ons. It includes the four massive story expansions ( Dead Money , Honest Hearts , Old World Blues , and Lonesome Road ), the combat-focused Gun Runners' Arsenal , and the four pre-order bonus item packs ( Courier's Stash ). Do install the “Updated Unofficial Patch” that requires