Halo has changed so much and so has the community. Some have stayed with the very first, some even stayed with the second addition, Halo 2, and all is done LAN. Some (like myself) have stayed with Halo 3, and rarely go into the fresh community of Reach. This is not a discussion about multiplayer aspects, nor is it about LAN. This is about (oddly enough) Campaign.
How to get the most out of Halo Campaign?
Why did I post this in the Reach section? You start with reach. I tried this, and nothing has satisfied me more than actually doing it. Doing what? Play each Halo campaign starting with REACH, then progress from REACH to CE, then H2, then H3. Everything falls in line. Do not skip any cut scenes. Everything will fit perfectly.
I tried this a few weeks after the release of Reach. I was completely blown away.