DirectX 8 compatible, for the retail game was designed to be DX8 compatible.
This is the scoreboard design that was used from the retail release up to the Tough Break update which changed it with the current one.
It does not include the column for Campaigns icons since these were introduced in the Gun Mettle Update and this version of the scoreboard comes from the version right before that update.
Please note that the ping as text is not a property of the scoreboard, but is an in-game option that can be found in the Advanced Options.
To install it, simply extract the ZIP file to your "custom" folder under your TF2 directory( you have to extract what it contains, not just copy the ZIP file). If you do not know where your TF2 directory is, right-click the game in your Steam Library, click on "Properties", and click on the button "BROWSE LOCAL FILES..." under the LOCAL FILES tab.
The scoreboard has been packed into a VPK to avoid potential freezes when looking up the scoreboard for the first time after joining a game.
This scoreboard can be installed in pair with another HUD by replacing your original HUD scoreboard file with this one.