New AI Gamemodes: My Ideas

I really thought it would be a good idea if 343 can implement these:
-Survival: Eliminate Forerunner or Covenant Forces as long as you can.(Weapons Progress and AI intelligence Increases)
-Spartan Ops: Basically missions you can do with YOUR SPARTAN, Up to 4 people
-Raids: Where you can raid covenant or forerunner structures or spires to earn REQ points, and Rewards
-Dead Zone: A gamemode with Flood, or Infected Covenant. REQ Systems implemented.

Let me know what your opinion is on these 3 New AI Gamemodes!