I need some more time with it I think, but the Halo similarities are not too far off (only two weapons at a time, some of the base architecture feels the same, all weapons have some kind of zoom on them), but I think that's where it ends. The weapons have a certain je ne sais quois that makes 'em their own kind of thing - they feel SOLID on screen - and the weapon upgrading system, though I haven't been able to get really deep into it, is a unique game mechanic. I think that's where the game will really shine, in the decisions on how and when you upgrade your weapon load out. This is also the first game that I can think of that allows you to *heal yourself* instead of having to pick up health packs. It takes a while and you're weaponless while you're doing it, but you can still run around.
The weapon wheel is a nice touch too.
But that points to something else: it definitely feels like a console shooter. It doesn't show any signs of a bad "port" from a console or anything - the graphics are high res and everything looks BEAUTIFUL - but the interface design (which also looks slick, IMO; very clean), the weapon wheel and the slightly sluggish/strange feel to the mouse movement all harks back to a console feel.
And there's no movement tricks that I can see so far. No dodging and double jumping obviously, but no gren or rocket jumping either. There might be something you can do with the sprinting ability though...
Oh, and in case you're wondering, "Front Line Assault" is sort've a simple, dumbed down Onslaught ("dumbed down" doesn't mean it's bad, it's just not as involved as Onslaught is). You don't have to charge nodes or anything. You just have to touch them and then secure the area until it switches over to your colour, then push the "front line" ahead to the next node.
This definitely feels like a "by the numbers" multiplayer component for what could be an excellent single player game. I wanna play it some more - like I said, the weapon upgrading system might prove to be very deep and involving - but I think it's the single player component that's the real meat for this game. The enviroments, the level design, the graphics...they all say "single player" to me. But we'll see...