I don't see what other games has to do with Halo. I never said other engine's and other franchises can't add new things to a game. The engine layout and development pipeline for more powerful and much better architecture there of, allow many games to add content. Halo is NOT one of them.
I could write a novel on how the engine works and showcase thousands of evident proof, but it wouldn't be enough to show people how it can't be done, at least with the last version of Blam! that was used with Halo 4. As I have said before, we don't know how the newest engine works. It could have been reworked to allow one form of it, but all other engine version previous to 5 have not been able to do it. Again, unless XB1 modding takes off and we finally obtain a way of looking at the map files, I cannot and will not say it 100% impossible with engines after Halo 4's.
I will not do your research for you. You can cry about wanting proof all you want, but in the end you are the one with the burden of proving something. Name one item that was added to a Halo game post release that wasn't a map item, or an already present item in the game data that simply unlocked. Can't name one? Yeah, that's cause it can't and wasn't possible to do.
Edited by Twinreaper, 21 November 2015 - 08:35 PM.