Apart from my vivid memory of playing Halo: Combat Evolved on the old Xbox, I don't know that much about Halo. What I do know, is a good game. And this is it.
Halo: Reach has a stunning campaign with great visuals, sounds, and a good storyline also. The main part of the game is its multiplayer like any game, and yes the multiplayer is amazing. Love the Big Team Battle game mode where there are vehicles that can be controlled, also love the sniping game mode which adds even more value to the cost.
Halo: Reach has made me a huge fan of the franchise now, and come November 15th, I can't wait to relive history and play Halo: Combat Evolved Anniversary, which was a great idea to update the game and re-release it. If you're a fan of Halo, or just a fan of shooters, this is well worth the low price it is now.
Highly recommended.