Okay so on Spartan Ops 6 CH 3 Need to Know I found a couple of things. First is the air strike button, not sure if anyone else knows about this but if you sneak past the grunts and head to the shielded cave with the big blue field thing there will be an elite on a computer. Assassinate him and reapetedly hold x when the prompt shows to push a button and initiate a covenant air strike on the nearby covies and some dialog from Palmer.
Next is the pretty cool glitch that let’s you walk on air. You will need a banshee to do this so keep one intact all the way through to the last part of the mission when the phantom drops off the hunters. Fly as high as you can above it and when it takes off and flys up if you are directly above it it will push you up past the invisible barrier that stops you fom flying any higher. Of course you can explore a bit but you can also jump out and land on top of that invisible barrier and run around shooting at the hunters from above while magically floating.
Again not sure if these have been found but I thought I’d share it with the Halo community. ^.^
I’ll have to go try it!