Was reading a review about the closed-doors MGSV demo. It sounds like it's gonna be a cross between GZ and PeaceWalker. The Fulton Recovery System is back: http://gamingbolt.com/metal-gear-solid-5-the-phantom-pain-video-showcases-fulton-recovery-system You can even use it on animals (wtf). So basically during missions you can recruit members (and animals and weapons) using Fulton Recovery, and then afterwards you can assign/train/upgrade them on Mother Base. Apparenty Mother Base can also now be attacked by other online players.