Board Thread:General Discussion/@comment-189.25.51.40-20140102002957/@comment-1210805-20140103042741

Jim Logan wrote:
 * 1) 1 message - So like D-Day and stuff? Yeah that'd be cool but the Shagohod was the first "Metal Gear" so The Boss really has nothing to fight but the Nazis. But yeah it'd be cool.

Technically the Nazi's were researching two giant battle tanks, one of which would launch rounds that were the size of regular tanks. That could work as both a precursor to the Shagohod, and as a secret prototype within the game's story.
 * 1) 2 - Underwater bases? Yeah that'd be cool. Underwater monsters? Didn't we get that with the Monster Hunter sections in Peacewalker?