I personally think 300 is what the game should have, the game will be able to run smoothly and quickly, with 1,000s I feel it will be too crowded, take a look at games such as GTA 5 were it hosts a maximum of 30 players per server on a huge map, and you're constantly getting shot every where you go. And that's just 30 players, I feel identity shouldn't go beyond 500 players but if they chose 1000 lets see how that goes.