I noticed in Crysis 2 when you view server information, it shows the names of the players, but not their rank. Perhaps this feature can be added to C3 MP.
In my calculation, you could send an array of the players' usernames in a single TCP/HTTP request and return the ranks in the same way, an array.

It could also probably be done in a single TCP packet(send).

Err ok... you're talking about PC right?

The game will be multi-platform, so whatever features the PC version has, all platforms will have. Except perhaps advanced graphics options and others.

We don't get to view server information

In my calculation, you could send an array of the players' usernames in a single TCP/HTTP request and return the ranks in the same way, an array.

It could also probably be done in a single TCP packet(send).

I doubt it could be done in one packet send. Are we talking about everyones rank? or just how many players are on that server?

Compressed it might.

Also does this information come from Crytek's main server or the server that you are joining?

Likely the information is temporarily stored on the server you are playing. As for the data, Crysis 2 had a zlib1.dll which means they used zLib somewhere inside, and as we all know, zlib is a compression library.

Yeah shouldn't be too hard. They may aswell add it.