Underhell is a Half Life 2 Modification developed by Mxthe in collaboration with We Create Stuff.
Underhell Prologue requires a Source Engine game to run, and Source SDK Base 2006 installed.
Underhell Chapter 1 will require a Source Engine game to run, and Source SDK Base 2007 installed.
Riot Shields are Randomized Bodygroups, just like the Helmets or Armor.
Expect combat to be more tactical.