My rig is an opty 170 (stock) 2gb of ram and a 7900 GTO (stock) and im running with everything on high, AA included, resolution of 1280x1280. No slowdown at all, no lag at any time, this demo loads maps extremely fast and plays without any lag, the interface is quick and there is no slowdown using it or any crashes. This is looking very good from a technical standpoint.
As for the gameplay, ive had a chance to finish the missions and do the tutorial, they were pretty sweet, especially the mammoth tank mission where you sink battleships. The guy inside the tank dosent lie when he says "Unstoppable!" and "Armor superioity!" Dunno what theyve done to the mammoth since beta testing but ive noticed two things:
1. It can annihilate anything i came across easily, took on 3 scorpion light tanks and won, without railgun upgrade. (although i never faced it avatar warmechs or tripods) I gathered from what people said in the beta it would no longer be the most powerful unit but maybe they changed that to make it more competitive. In fact i destroyed the entire demo mission base with 1 mammoth tank, medium difficulty, that was tons of fun!!
2. It dosent heal itsself up to half health like they said it would. When its elite it heals all the way though just like an elite unit should. Maybe they traded this ability for more firepower?
Oh also about the mammoth, the turret ai? suppose thats what you would call it, is much improved from generals overlord, the turret turns quickly and intelligently for the most part. So if i order the thing to retreat it will do so with the turret firing backwards, generals did this too but i dont remember it being consistent, the turret would be all over the place with the overlord usually, might be just because the overlord was slower.