Download:
https://www.digitalcombatsimulator.com/en/files/2829090/
INSTALLATION
To install, unzip the download and place it in a folder labeled "casper hd", next to "default" at the following filepath:
...\Eagle Dynamics\DCS World\Mods\aircraft\Flaming Cliffs\Liveries\Cockpit_F-15C
To activate, click options (gear icon) at the top of the DCS: World home screen. Select the special tab, then FC3 (as applicable) and on the F-15C dropdown, select "Casper hd" in lieu of "Default".
Special thanks to RICARDO!