Spartan Ops Difficulty

Hey guys,
I got one question regarding Spartan Ops: Is it even possible to fail at a mission?
It’s so boring to play with one or two friends because you can just keep dying and running back into the enemies. Is there the possibility to turn on the Iron skull or something like that?

Only way you can fail at Spartan Ops if you rage quit. Press “Start, A, Up, A”

Wow, that’s disappointing.

you can fail if you dont complete objectives like protect.