I have had the sound disappear for weapons twice on multi player. My portait had no weapon once even though he appeared to be aiming it. I lost an entire day of saved progress on the campaign even though it said saved. I cannot believe the lack of music. Halo has always had the music that got you going. Even at the open screen..a little bit of ahhh then boom the music came in. This just has some people doing ahhh ahha ahh...then you wait and nothing. Loses the illusion of epicness. There is no music to give me that sense of urgency. I also miss the one man vs the world feel. I do like the graphics.