As with Ground Zeroes, The Phantom Pain will have a companion app, meaning you’ll be able to use your smartphone or tablet for certain things. Like in Ground Zeroes, you can display the iDroid map on it.
Here are some screens of the map function:
During the Japanese Boot Camp held last month, reviewers were also provided with tablets to try it out.
Source: Dengeki Online, via JunkerHQ, metalgearsolid.be