I went to a friends house everyday this week to play it, and I must say, it was fuckin' beautiful. The graphics are amazing. I especially love the look of the cannon on the Wraith.
Anyway, campaign was definitely fun. We beat it on normal mode in probably ~10 hours. The ending was lame and left it completely open for a Halo 3.
The multiplayer is of course bitchin'. The one thing I hate about it though is that they nerfed punching with weapons. It takes the same amount of hits from any angle. Punching is only useful if you take their shields out, so it's good with the plasma pistol fully charged. The beam sword is rigged. You can lunge in any direction so long as you're close enough, this includes up onto the edge 20 feet in the air so long as your reticle was red.
Possible Spoiler, hard to say but you've been warned-------
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BTW, there are tons of Halo's in space. The one you destroy in the first Halo is the first one found by man, than the second one is in Halo 2. Halo could go on for a LONG LONG TIME. So I imagine that Microsoft will run this series as long as they can too cause it brings in the billions of dollars they need.
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end possinle spoiler.
Front energy sword strikes are one-kill as well, I think. The brute carbine also has an insta kill.
Clubbing people is pretty much over with. If you're dual wielding(which should be about 85% of the time), you lose your gun if you club so I really don't do it at all anymore.
Not all front Energy Sword swipes are though. The melee lunges are mostly 1 hit kills for lesser enemies, but higher order elites and brutes take two or three usually. Or so I've noticed, I think..
One thing I do like though, the Hunters are actually a shit load harder this time. Unless you have a scoped gun, or are shooting from behind, you will most likely not hurt them. They were fucking cake in HALO, and now they are actually formiddable. If you get two of them in close quarters, they are a pain in the ass!