When Does the Novel "Metal Gear Solid: Guns of the Patriots" (2008) Take Place?
"Metal Gear Solid: Guns of the Patriots" is a spy science fiction novel written by Satoshi Itō [adapting "Metal Gear Solid 4: Guns of the Patriots" (2008) by Hideo Kojima with Shuyo Murata] that released June 13th, 2008. So when is "Guns of the Patriots" set?
It takes place on an alternate timeline of the fictional Metal Gear universe in the year:
We know this because the narrator Doctor Hal "Otacon" Emmerich tells us, "It was half a century agoーback when Russia was still called the Soviet Union"... The Soviet Union was a federal organization of states that ceased to exist in December of 1991 AD. Therefore it must be after December of 1991 AD.

2014 AD
We know this because the narrator Doctor Hal "Otacon" Emmerich tells us, "It was half a century agoーback when Russia was still called the Soviet Union"... The Soviet Union was a federal organization of states that ceased to exist in December of 1991 AD. Therefore it must be after December of 1991 AD.
More specifically, later Otacon says, ..."part of a plan nine years prior to annihilate the terrorist group FOXHOUND." referring to the events of "Metal Gear Solid" (2008), which takes place in 2005 AD.
2005 + 9 = 2,014.
It is the chronologically last novel in the Metal Gear universe and can be read at its timeline point after "Metal Gear Solid 2: Sons of Liberty" (2009).

