Besides items and maps, To me it seems exactly the same as Halo Reach’s forge, I’m not trying to be a fan boy about Reach, Trust me I wasn’t exactly impressed with that game either, But really what is new? I remember seeing videos where they would have magnets in the items that would snap them together, But I cannot find anything in Forge that is new…
They removed clicking the left stick for precision adjustments, that’s new. :\
Really it’s just Reach’s forge, they just added magnets and dynamic lighting. There’s also a locking system so you don’t accidently grab objects and it now highlights and has a name of the object you’re hovering the hand over. You can now duplicate objects so you don’t have to keep opening a menu if you’re repeating an object.
The new features simply speed up the process of map making by allowing us to line objects up faster and smoother compared to Reach.
On top of allowing us to add new vehicles and use more objects and the Forge map-specific items, there isn’t too much added. It’s just mostly to make building faster.