I’d expect problems
Konami plans to launch Metal Gear Online on consoles at 12:00am Pacific on October 6, 2015. You staying up? Know that there will probably be issues, and that it’s operating on a “rolling timeline window.” In other words, launch begins as early as midnight PT, so “please continue to check the patch availability on your chosen platform(s) as we near 10/6 in all regions.”
My good pal Steven has written at length about the online mode for Metal Gear Solid V: The Phantom Pain, both in terms of hands-on impressions (with his good friend Brett, who is also my buddy!) and also in terms of specifics on things like modes, maps, and classes.
Reminder: the lovely PC version of The Phantom Pain, what with its wonderful mods, won’t be getting Metal Gear Online until January 2016. That’s going to seem like a long-ass wait.
Start thinking about your style now.