ICBMG

The Intercontinental Ballistic Metal Gear, or ICBMG, is the real Metal Gear featured in Metal Gear Solid: Portable Ops, with Metal Gear RAXA being a mere prototype.

After enjoying a brief sense of victory, Big Boss is informed that what he just defeated was merely the test model, and then witnessed the real unit being transported via helicopter toward the base's underground silo complex. Ultimately, he is unable to reach the launch control room before Gene can begin the launch countdown, and must resort to trying to destroy the unit itself. While it was fortunately unmanned and already attached to the top of the rocket (and thereby effectively defenceless) it was, however, said to be invulnerable to conventional weaponry, thanks to its incredibly thick armour, and supposedly any assault on the rocket could cause the underground silo complex itself to be destroyed in the resulting explosion. Determined to save the world without any concern for his personal safety, Big Boss commits himself and attacks it with his RPG-7, while the troops he had inspired over the course of the incident helped him out by firing their own weapons. Although the rocket launched anyway, it quickly became clear that all the combined firepower damaged it sufficiently: After detaching from the rocket, Metal Gear began to fall off course, resulting in its destruction once it crashed back down to the ground.