Tribes: Ascend - F2P Combined Arms/Arena Shooter Hybrid

[Zubin]

Tribes: Ascend is a continuation of the Tribes franchise which began with Tribes: Starsiege in 1998, the game which Bungie has said is the sole inspiration for Halo 1: Combat Evolved, so basically the Halo games are Tribes in console form(adjusted to suit the limitations of a controller), Tribes: Starsiege is also the first game to popularize e-sports with respect to the FPS genre. There are lots of items to unlock and there's of course a 250 gold facebook promotion which allows you to buy the equivalent of a 42k exp item, personally with that gold I would opt for unlocking either the eagle pistol or the utility pack, I'd only recommend the former if you have 90th percentile aiming skill or better, also most of the default loadouts are better for top tier players for instance the best snipers use the default Sentinel loadout so there's absolutely no need to grind or pay to be as competitive as possible. Tribes: Ascend in my opinion is the best breeding ground for the highest skill level of FPS player by far, skiing snipers are all on par with CS 1.6 pro awp'ers despite mostly being pubbers. Here are some videos of Tribes gameplay:
Shad - Shots Fired
Jixid #1 - YouTube
Outrun - Jpwai