7
MGS4 coming on Master Collection vol2
(www.ign.com)
You can't, but I'd try dissabling crossplay. That could reduce the number of players you'll find (and improve performance btw).
That being said, once you reach endgame you will find a lot of people on legion events, helltides and world bosses
Level 62 druid here.
I read somewhere recently that "OK" is the most widely used expression accross languages. Not universal per se, but close enough.