The Weapon to Surpass Metal Gear (sometimes just shortened to Metal Gear in-game) is an upgraded killstreak available in Call of Duty: Advanced Warfare. The Metal Gear consists of an XS-1 Goliath killstreak with the underbarrel rocket launcher and shoulder-mounted homing rocket modules installed. Though this raises the cost of the killstreak considerably, it is also what makes the fully-equipped armoured suit the ultimate weapon to surpass Metal Gear.
Though killstreaks of the same cost such as the Paladin can offer fairly consistent results, with the right OPERATOR the Metal Gear can lock down entire areas, overwhelm a defensive position, and generally wreak havoc across the battlefield. An additional module can be installed, either the Exo Ping or the Exo Trophy system, though Imperial researchers have concluded that their effectiveness versus their cost increase is insufficient.
Doc Croc (Also known as Big Croc or Naked Snake) is a legendary Cold War spy of Imperial origins. A fierce American patriot, Doc Croc was personally responsible for the apprehension of the rogue Soviet Colonel Volgin and the destruction of the Shagohad, a dangerous Soviet mech. These feats are even more impressive when you consider the fact that Doc Croc is literally a bipedal Indian Gavial in a lab coat, wearing a thick layer of facepaint reminiscent of the flag of the United States. Due to this, Doc Croc was limited in the variety of electronic gadgets and technology he could utilize on the battlefield. Nevertheless, Doc Croc was able to complete his mission successfully and was later given the title of “Big Croc” by the President of the United States. Later in his life, Doc Croc stopped a bipedal nuclear-capable mech in a pair of boxers, and several genetic clones of him were created by the organization known as the Patriots, the most notable of which being Jihad Snake. Some Imperial scholars believe that Doc Croc was the corporal incarnation of the Ancient Egyptian deity, Sobek, the target of much worship and reverent by Egyptian zealots.
The origin of Doc Croc is a live playthrough of Metal Gear Solid 3: Snake Eater in a single sitting streamed live on Stream Eater. During the playthrough, the viewers of the stream constantly urged the player to recover the “Croc Cap” item, which was subsequently worn for the entire playthrough. The event was completely unplanned and spontaneous. The name “Doc Croc” was coined by the viewers of the stream.