It isn't low-g, you have a jetpack. If you hit the ground at the right angle, you "ski", building up speed. It's a CTF game, so cappers try to hit the enemy flag stand at ludicrous speeds and then find a route back to their base.
It's the first FPS I played that had the notion of a generator. Each base has a generator that powers turrets, sensors, force fields (that might be a mod), and inventory stations.
In theory a team has to work together to take down the enemy's generator so they can get to the flag stand. In practice nobody gives a shit after the generator is destroyed so most games end up as running battles around the flag carrier.
It's not a bad series, but the official map builders never seemed to get the balance between base maintenance and flag control right.
The studio behind this one (Prophecy Games) is independent from them now, but still contains some developers who also worked on Ascend. I know from hanging around the forums at the height of that game that there was at least 2 headstrong devs in the company that legitimately wanted to do the game justice (and one of the best updates to the game was headed up by them), but they ultimately were at the mercy of the execs. I'm hoping without the same constraints, they might deliver a kick ass game without the bullshit.
Miss the size 64vs64 of Tribes II, miss runs with a loaded transport, Juggernaut on the back. Strike covering. I know it's playable still, I check in every so often.