Microsoft release Spartan Ops episode 5 for Halo 4

As usual they also launch a trailer to entice you. The rascals. There's a "discovery that changes everything" humans thought they knew of Forerunner Prometheans.

"Secrets are revealed, trusts betrayed and the Sangheili leader Jul ‘Mdama’s ultimate plan nears success," begins episode 5's blurb on Halo Waypoint. Check out the teaser below for episode 'Memento Mori'.