I flocking loved part 1. The differences between the three sides gave each the perfect feeling - and yes the marine campaign was very paranoia inducing. Is part 2 as good? Yes, maybe even better and it looks lovely, even though it runs on Lithtech. That god damn motion radar flocks things up even more paranoia-wise, since it reacts to every moving object, including shattered glass and whatnot. The thing about aliens that really scares me in the game is the fact that they are so damn fast; when I was playing Part 1 with a friend, we saw this one lone alien at the other end of a long corridor... *swoosh* 1.5 seconds later it's right in front of the marine's face. Talk about having heart attack.