I have just thought of a great machinima?

I have just thought of a great machinima its after the events of halo 3, well the elites have betrayed the humans and since the Master Chief is MIA they have no choice but to release the secret spartan 1s that they told no one about, there is 16 spartan 1s that passed and are the most elite Spartans ever created about 1% off of master chief this will take place in 2562 and also the spirt of fire has been found and deployed in space searching for master chief. The point of this is for the elite Spartans to defend earth from utter destruction because the humans still have not fully repaired earth. All remaining humans and remaining spartan 2 and 3s will return to earth to hopefully defend the planet. IS this a good machinima idea? i think it is? or even a plot line for 343 industires halo 4?