This is a montage edited by Mattisson Design, gameplay by European pro, Fragtale. I'm a sucker for great editing but there's some really good plays in this montage too. Check it out. YouTube - Fragtale :: Halo 3 Montage 1 - 100% MLG - INCREDIBLE!!!
The gameplay was better than the editing by far. There were only a couple good moments, the rest were overpowering effects and overlays. But the clips were good, lots of overkills.
I love the part at 2:29 - 2:31, and the awesome, terminator style HUD at 3:13. The intro was good also. I personally don't think it was overpowered by effects, I think it was a good balance and it all sync'd very well. Awesome Montage.
The editing wasn't all that bad, but following bullets, close up of shells, and the lightning transportation thing just took you way out of the experience. The gameplay was flawless, though.
TOOO MUCH LIGHT RAYS it was always in the way for me very distracting some places it worked but not all over ZOMFG!!