Finally got to play it for about 15-20 minutes. Pretty good. Well really good IMO for the first release, and it being a free mod. Graphics, levels, models, and animations are very good. I had a feeling that Valve doing episodic releases that take so damn long isn't gonna be a good idea as Source is from 2004 as it is (especially with games like Crysis that will raise the bar so high), but its obvious that Source can product some pretty amazing graphics given the hardware required to run it.
I only played the coal mine level with about 13-16 players, but it ran very smooth at 1680x1050, 4x AA, 16x AF, and every detail on/high. I suspect that more players, other levels, are intensive scenes in general will slow down too much with these settings, so I'll probably have to turn down AA to 2x or something. But relative to DoD:S, which I use the same settings with, this runs about the same, but that is likely due to playing DoD:S with more players than I just did with Insurgency.
2.7ghz Opty 165
2GB DDR @ 150 MHz
7800GT @ 465/1110
I got owned though. I probably only got 3 kills for like 8 deaths. I didn't like that level either. It was a bit hard at first to find where the hell to go. I don't mind the no crosshair and realism aspect too much... it's nice to have a change, but I did bad the whole time. There were a few deaths I had where I had no idea at all where the shots came from. You just sort of die.
I don't see much use for the RPG class, but that is my opinion for just that little bit of time and that level. I guess city levels might have more of a use for it. In DoD:S, there were quite a number of people who were really awesome with the RPG class, and the carbine type weapon they had was more useful than a pistol. I probably did the best while playing rifleman with the AK. The bipod mode was pretty cool. I tried sniper for a little bit and couldn't hit jack. Sniper is very easy in DoD:S, too powerful even, but maybe this one just has a higher learning curve. I hope the games don't turn into sniper battles/where the hell did that shot come from that killed me.
Overall, very nice job by the devs. Source engine rocks... superb, clean graphics with minimal hardware, lots of modding, and awesome network code (tho I swear my ping is often underestimated in Source games... 15-30 ping on a Chicago server that is 8+ hours away?).