Spartan Ops was an interesting experiment to say the least. The story aspects were the best part, but I think we can all agree it was too repetitive.
So I attempted to cut out much of the irrelevant bits of spartan ops and bring it down to a more reasonable size that fits with most of the significant story points, while limiting repetition as much as possible.
So here is my edit Spartan Ops 1.1
Departure:
*Land Grab(Quarry x1)
*Sniper Alley(Sniper Alley x1)
*Core(Cauldron x1)
Artifact:
*Honestly you can probably skip the chapters in this episode
Catherine:
*Spartan Mountain + *Shootout in Valhalla(Two Giants x1)
*Hunting Trip(The Gate)
Didact’s Hand:
*Rally Point(Two Giants x2)
*Random Transport(Fortress x1)
*The Chase(The Cauldron x2)
*The Didact’s Gift(Galileo x 1)
Memento Mori:
*Nothing Can Go Wrong + Everything Has Gone Wrong(The Refuge)
*The Cauldron Base(Cauldron x3)
*Spartan Thorne(Quarry x2)
Scattered:
*All of these are worth playing
Invasion:
*So are these 
Expendable:
*Not so much these, maybe Glassman
Key:
*The Search For Halsey(Cyclone x2)
*Science Mountain(Apex x2)
*Revenge + The Hammer(Lockup x2)
Exodus:
*Naturally all of them are important to the story.
Anything you think I missed or could be cut? If so give a reason in terms of the story.