I've been looking though the forums and I haven't noticed something yet that should be posted.
PlanetSide, the FPSMMO is now free to play for one full year if you go the way of the reserves program.
There is a battle rank (think level) restriction of 6. This allows players to be able to specialize in some sort of field be that aireal combat, ground assault vechiles (tanks and troop transports), advanced medic (allows to revive people), etc. This also allows players access to one implant as well which can be from enemy targeting information, rengeration or running faster for short periods of time.
I'm currently on the Emerald server playing for the Vanu Sov empire. So far most combat zones have been all about the Terran Republic and the New Congolmerate tag teaming the Vanu, which leads to some really impressive and chaotic fights when the TR and NC remember they're mortal enemies.