The Scorge mod for Half-Life

STORY Until now, The Scorge has never had a problem defeating an enemy race... But when The Scorge attempted to overcome the technologically advanced alien race of Nooblik, they found themselves in a war they may not win. With the Nooblik not letting up until they've defeated The Scorge, The Scorge begin running low on food and supplies. And so, The Scorge target the easy prey of planet Earth. The humans soon become overwhelmed, and in a last hope for human survival they construct an underground bunker labeled the Underground Union, or the UU. The bunker is filled with every skilled human to repopulate the Earth. You are Kent Ryans, one of the UU's few military personels. After 4 years of hiding in the bunker, you as well as a few of your fellow soldiers are being sent topside to check on the action... The Scorge, finding themselves battling two races at once devise a plan and trick the Nooblik into thinking The Earth is their enemy. With The Scorge being kept so busy in this...