I was just thinking about this the other day - Halo 5 had really good ongoing support with free content from the 343i team, adding in tons of new weapon and vehicle variants. These were awesome to experiment with and helped vary the gameplay. The old notion that there could be only one weapon type for each class (i.e. one Rocket Launcher, one Sniper Rifle) for balancing sake was kind of debunked with Halo 5.
Therefore, I would love to see every standard weapon and vehicle from every game (and it would even be cool to add some of the sandbox items from Halo Wars) into Halo Infinite. Why not? I think the Needle Rifle, the Storm Rifle, the Plasma Repeater, the Plasma Rifle and the Carbine etc could all find their own place in gameplay would help give players variety of choice. Same goes for human weapons (for example including both AR types - Reach + legacy), as well as vehicles. Plus so many of these items are so beloved by the community. There’s no reason why they need only one human flying vehicle for example - Why not be able to use a Falcon, Hornet and Wasp? It would be super cool to bring in some of the extended universe vehicles like the Kestrel from Spartan Strike.
Obviously this is all for campaign. Totally understand the argument that everything would have to be balanced for MP. What do you guys think?