The main purpose of this mod is to recreate the original SMOD: Tactical Delta 5.56 on the latest Source SDK Base 2013 Singleplayer branch C++ source code. This mod was compiled using Source SDK Base 2013 Singleplayer branch C++ source code. Which means that you will need to have Half-Life 2 and Source SDK Base 2013 Singleplayer to be installed in Steam to play this mod.