The long-awaited release of new mod tools for Halo 2 and Halo 3 has brought Halo: The Master Chief Collection into its eighth (and final) season
Halo: Combat Evolved enabled mods in June, of course.
The most recent update to Steam includes certain adjustments to "enable both traditional and remastered HUD features,
" but already installed mods "must stay compatible." There have been a few bug fixes.
These new mod tools are supplied on a "as-is" basis, as the developer 343 Industries acknowledges, so things probably won't be ideal in this first iteration,
Although the support offered here won't be of the same calibre as that of the Master Chief Collection itself,
the developer states that updates will be made to address any problems with the tools and that it will be paying attention to player input.