I have to say congrats this week to 343 Industries. I have just played the 1st two Spartan Ops missions and they were wonderful. The maps were greatly designed and the amount of carnage in each one was cool too. I screamed during the cinematic just because how epic it was. I also got my hands on Grifball and it was better then expected. Congrats to 343 this week! 
343 is slowly making progress.
Slowly.
Still not going to come close to Campaign.
Checkpoints is the solution. Savable checkpoints is deliverance.