I was just wondering if 343 randomly join in on custom games? Or is it just their moderators that keep an eye on things? Anyway customs is really great and I am having loads of fun creating never seen before maps! I do get alot of people tell me my maps are unusual and way over the top. This is great to hear coming from my followers! Who ever thought someone in 2019 is still creating hundreds of new maps in Halo 2 Anniversary? I just find the forge simple to use and has more object resources than any other Halo forge. It may not look as defined as Halo 5, but I’m going for that artistic abstract look.
I’m sure they join in on custom games the same way you or I do, where if there is a friend we know who is playing, great! We join them! I do not, however, believe that 343i can just sneak into games unsolicited/unannounced.
Who knows maybe they enjoy getting to play with the community.