Dr. Halsey Shows Up In This Spartan Ops Episode 3 Trailer

Those familiar with the Halo universe will instantly recognize the name Dr. Cathrine Halsey. She’s the one behind the Spartan program which ended up saving humanity from extinction. She’s also now a war criminal due to the methods used to create the Spartans.

She’s now on board the UNSC Infinity to study the strange artifact recovered from Requiem.