Yeah, I never understood why the flood became so slow and stupid in Halo 3. Flood missions need to have bigger rooms and environments in order to produce good/fun game play. I loved the fog effects and some of the immersion in Halo 2, except for the overall level design. Halo 3 failed hard core when it came to the flood. I mean if anything, the flood devolved more than evolved in Halo 3. I was also expecting a Gravemind fight on the cortana mission. I mean wtf, you are in his god damn lair and you don't even see any sign of him.