Re: Why not 200+ players? (Map size)
The massive player counts are a bit of a gimmick to me to be honest. You can play on a massive map with 200 players or a more reasonable size map with 64 players and so long as the map is big enough to support distinct "areas" and the ratio of players:map area remains the same the game is going to play much the same.
The comparison to Planetside is a good example. Planetside 2 supports 2000 players per continent but each continent is massive and subdivided into distinct areas each of which is about the size of an average Battlefield map. The result is while yes the scale is much larger the moment to moment gameplay is similar to Battlefield in my experience, probably a bit faster paced when the server is actually full (but it's usually not).