Quake 4

Quake 4 is a 2005 military science fiction game developed by Raven Software and publish by Activision. It is the fourth title in the Quake series and is a sequel to Quake II. The development of Quake 4 was supervised by id Software who provided Raven with the id Tech 4 engine. The game features a heavy emphasis on the singleplayer campaign but does include a multiplayer mode more in-line with the previous titles.

Story

In the mid-21st century, a barbaric alien race called the Strogg launched a massive invasion on Earth. While the invasion was originally believed to be an attempt to strip the planet of its natural resources, humans soon discovered the Strogg are only after one thing: the human remains of those they kill. Through a horrific process, the limbs and flesh of the fallen are fused with metal and machinery to create the monstrosities that are the alien Strogg.

The Strogg battled the human race for years on Earth, but as resources became depleted, Earth mounted a counter-assault on the Strogg homeworld. The first assault force was launched from the fleet and encountered massive resistance - most of the drop-ships were destroyed by the Strogg homeworld's massive defense weapon known as "The Big Gun". However, one surviving Marine broke through and was able to destroy The Big Gun and ultimately defeat the Strogg leader, the Makron. However, the war did not end there.

The Strogg proved to be extremely resilient and as the war continued to rage, the Strogg regrouped and constructed a new and more powerful Makron. You are Matthew Kane, a member of the elite Rhino Squad and part of the next massive invasion that spans across the entire Stroggos planet. Equipped with hi-tech weapons and mobile vehicles, and teamed with a top Marine squadron, you soon realize this war is far from over. In fact, your worst nightmare is soon realized when you discover to defeat the Strogg, you must become one of them.

(Provided by Xbox 360 manual)

Levels

The game consists of 5 acts; Gaining a Foothold, Operation Advantage, Kane of the Strogg, Operation Last Hope, and Confrontation.