Sarah Palmer hate now? I will fucking cut you. All of you.
Halsey kidnapped kids and conducted invasive and at times fatal experiments on them, and then indoctrinated them to kill, before it was cool. Yeah, great lady there. Love Halsey though, and the way they're handling her character and providing contrast to Cortana.
But Palmer? She's strong, has those "yeah, I work out and could probably kill you 50 ways with my pinky toe" good looks (no monster rack popping out of her armor, no armor-as-g-string action, and no butt shots either), and has the job of keeping dozens of ego-augmented battle bros in line. I take it she's head of security aboard the ship, and not just the Spartans? Regardless, no she shouldn't be on the ground with you in Spartan Ops because those are specifically fireteam Crimson missions. She usually hangs out with Majestic, but leads the whole shindig from orbit.
My favorite thing about Sarah Palmer? When she's in doubt, she kicks things, hard.