Fixes the metal doors in L4D2 maps.
The L4D versions don't fit in the frame and have the incorrect texture, so this is just a simple fix that shouldn't affect default maps like The Sacrifice, so they will still have the doors intended for them.
Replaces the L4D icons with the L4D2 versions. This also replaces the white pickup icon with the transparent one from L4D2.
Important: Requires pak01_dir to be extracted. Link on how to extract pak01_dir is in the changelog.
This also works with the Borderless HUD mod.