This folder contains two versions of the set, a pre-compiled .vpk archive and an "old era" folder tree with the files. If you don't know shit about modding, or just want to install this full set with no changes, copy the .vpk file to your
Steam/steamapps/common/Team Fortress 2/tf/customs
folder. It is NOT recommended that you copy the old-era folder to there and use that- using old era customs will slow down your game. The old-era folder is there for the convenience of anyone who wishes to pick-and-choose items to install or wishes to modify for their own purposes. It is suggested that anyone who does so compile the files into a vpk before use- visit https://developer.valvesoftware.com/wiki/VPK for infoormation on compiling vpk files.