SMOD is a single player mod of Valve's first-person shooter Half-Life 2. The new content consists of many new NPCs and weapons, new gamemodes, comprehensive customization and tweaking options, new abilities for the player, and new features to the gameplay, such as level randomization and simple branching in the otherwise linear flow of the main episodes.
SMOD Redux: Tactical Delta 5.56 is a mod, that converts the original SMOD Tactical Delta 5.56 into a SMOD Redux - Final. Which means, that you will play SMOD Tactical Delta 5.56 but with SMOD Redux - Final features.