Donald Anderson

Sigint appears in the game Metal Gear Solid 3: Snake Eater and is a member of FOXHOUND.

In the game Sigint provides detailed information on weaponry, machinery, camouflage, and gadgetry. He, among others things, invented the binoculars Snake uses in Metal Gear Solid 3: Snake Eater. He provides useful strategies and tactics in boss battles and other situations. His codename refers to the military term "SIGINT", or SIGnal INTelligence. In 1965 Sigint joined ARPA and takes part in the development of ARPAnet. Given this information, it has been heavily hinted that Sigint is the DARPA chief involved in Metal Gear Solid. This can be debunked because ARPAnet deals with computer communication and DARPA is for military technology. Sigint has said in a radio conversation that he wanted to create an environment where people can communicate with each other regardless of race, skin color, etc.

A funny conversation occurs when Snake is wearing a box. See Metal Gear Solid 3 Conversations for a full list of comical conversations.