So I discovered the wonders of Halo 3 YELO maps for Halo CE....
Video
Seriously though I feel like Halo CE with OpenSauce on the PC meets all of HaloGAF requirements besides Matchmaking.
-1080p
-60FPS
-90FOV
-Better Sandbox
-Core Halo experience
-Halo 3 set-up (optional)
[This is different than the Halo 3 foundry map that had some Halo sandbox stuff in it]
The BR even has the spread. Attention to detail there.