This is a special version of Aftershock For Quake by Head Games Publishing Inc, Released the same time as the original Aftershock that was commercially sold, The Deluxe Edition contains a additional 50 maps switched between Singleplayer and Multiplayer that are NOT on the original CD, This file came from Archive.org and I do not take credit for the CD nor do I own it either.
Still got this collecting dust and backed up too. Never Ever throw away the classics.