The central computer of Arsenal Gear, an optic neuro AI said to be the only system in the world with a processing capacity of 980 trillion hammets. The core system of the S3 Plan. Also controls all weaponry, nuclear and conventional, of the four branches of the US military through a tactical computer network.
It was shut down by the worm cluster developed by Emma Emmerich.
While temporarily crashed by Emma's worm cluster, it was recovered and repaired by Liquid Ocelot. GW is one of four optical neuro AIs that comprise the Patriots' AI system, a fact that he exploits to gain access to their system. After Arsenal Gear crashed into Manhattan, it was transferred to Outer Haven, with GW's server housed deep within its bowels.