To IA Studios.
I made a topic where I collected info about using manually selected waves to make CIU episode DLCs which could also work offline. This could meet point 1 and 4 of your reply on “offline mode” topic
Here are poll results, I know 7 days is early, but it kinda died out. 29 is not so much on such a matter, but it was fluctuating near 90% anyway.
Chicken Invaders Universe episodes DLCs framework