Hey hey me and a homie are trying to speedrun this game, but when going through forums and resources there seems to be a referenced exe file that isn't in the resources. Whats the current downpatching method?

in resourses to this game download MOST RECENT DOWNPATCHER, then open regfix folder and run Enable, then open Patcher folder, check the box - show all patches, choose game folder (steamapps/common/borderlands2), and choose 200 to 110 (or whatever version u want), to check is this work in game open matchmaking - match browser and the game version will be displayed in the lower right corner