I voted for not needed. The reason is simple. If the release maps are going to be anything like the current beta explore map, you can get to anywhere from just about anywhere (even through the level 20 areas if you are careful/quick enough). There are a couple areas which I jokingly call "caves of nope" that dead end and you'll probably die several times in the process of finding said dead end. That's the thrill of exploring. Learning where to go and where not to go. Protip, if you wander over to the devil tank area on explore, easier to go to orbit than backtrack. You are provided a waypoint with the nav button and an arrow on the radar. The playable area is straightforward. A map would be redundant. Additionally, the way the beta story missions are laid out, they take place in the same explore map you would go to, defeating the purpose of a fallout style in-game map. If you are circling back to already explored areas, good. Enemies, loot boxes, spinmetal, and missions reset periodically. However, as this is a beta and certain things are content locked, it may very well be that there is a map somewhere in the code, just not available at the current time. Of course, I am basing this off of my many years of open world game experience, and the many (many) hours derping about in explore so yeah, I'm somewhat biased against it.