Play the Fn' Objective!

End of Nations is an MMORTS being published by Trion Worlds (the RIFT guys) that lets you build your force before the battle and then enter with it into massive games of up to 56 players. There is also a global campaign between the three factions. In these respects, it's somewhat similar to Tom Clancy's EndWar; it's more of a real-time tactics game than a strategy game, as there is no macro/base management and instead is all about controlling your units in objective gamemodes. There is also a large nonplayer faction against which players, even of opposing factions, can team up to fight against.

An End of Nations beta is currently underway - just sign in to (or create) your Trion Worlds account and go here: http://endofnations.com/en/beta/

You will get to a screen titled "Manage End of Nations Beta", where you can click inside a brown box near the bottom of the screen to register for the beta and then download the client.

I hope to see you guys out there :)