Half Life 2
Half-Life 2 Mod - Exterminatus v6.20 Beta
Exterminatus : Destruction of all life on a world by the Imperium of man. This mod is set in Games Workshop\'s great Warhammer 40,000 universe.
Each map pits Imperial Space Marines against the Tyranid swarm, competing in a series of mission objectives, culminating in a battle to decide the fate of the planet.