The Metal Gear Solid timeline is filled with interesting plot points, from Snake's mission in Zanibar Land to Desperado's uprising, there are plenty of interesting key time periods. However, there are plenty of interesting moments in this extremely long timeline that haven't gotten the light of day. There will be obvious spoilers here, so if you haven't played the games before, do so now.
With that out of the way, these are The Metal Gear Solid Time-Periods I Want Explored
The Boss Turns the Tide of World War II (1941-1943)
Functioning as the main villain of Metal Gear Solid 3: Snake Eater, The Boss is the origin point of the Metal Gear Solid plotlines. Known as ‘the mother of special forces’ she apparently secured victory for the allies in World War II. Playing as The Boss with her unique gun-destroying form of CQC would be fun, and seeing the origin of the Metal Gear series unfold would be amazing as well.
Solid Snake Leads Philanthropy (2005-2007)
After the events of Metal Gear Solid, Snake and Otacon formed the anti-Metal Gear foundation Philanthropy. The duo apparently became wanted terrorists, infiltrating military bases and exposing government-created Metal Gears on the internet. With Peace Walker’s military building concept, recruiting members to Philanthropy to take down Metal Gears while going on your own away missions would be extremely fun.
Jetstream Sam Takes On the Cartel (20??-2016)
Jetstream Sam is among my favorite Metal Gear Solid characters, and it’s alluded to that he has an interesting past. According to Metal Gear Rising’s DLC, he fought against the Cartels in South America. Now that he has been killed off in Metal Gear Rising, a prequel is one of the only ways to get this amazing character back into the spotlight.
Raiden Disappears From Public Eye (2009-2014)
Something happened to Raiden in between Metal Gear Solid 2 and 4. Nobody knows what exactly happened, but when Raiden returned he had a cyborg body. Personally, I’d like to see Raiden’s second Revengeance outing be a flashback to what happened to him, tying up his story neatly.