Allows heists to override player selected outfits with the heists' defaults. There are two files, each does something different. They can be freely used together.
All version is a client-side override and will make every heister use a heist specific outfit, for example, if everyone in the lobby is wearing the Murkywater Uniform but you play on Green Bridge, everyone will use raincoats instead. Only the player using this mod version will see any change, and it doesn't show any changes to other players.
Self version is an override for yourself only, and will result in the same change as above, except only your own outfit is swapped and this swap will show up for others. You will still see other players' selected outfits, unless you combine this with the All version.