Here is the new Gamescom 2015 gameplay video showing off the game’s Mother Base options, narrated by Sean Eyestone.
Both this video as well as the new trailer are being shown throughout the gamescom event, which takes place August 5th-9th.
The Japanese version, which is narrated by Japanese Ocelot voice actor Satoshi Mikami, can be found here.
As always, a high quality version can be found on Gamersyde.
Source: Metal Gear Solid Youtube Channel