The codec is a key tool in the Metal Gear Solid series, allowing players to receive tips and immerse themselves in the game world. The cardboard box is more than just a hiding spot - it's a gag ...
The Metal Gear Solid games span across decades, though not in chronological order. This should clear the timeline up.
While there's been no confirmation of a Metal Gear Solid 6 on the horizon, it seems unlikely that Japanese entertainment giant Konami would abandon one of its most beloved properties so easily.