The 9th mission has that Tribute Room of all Halo games.
The whole Tribute Room
is actually Dr. Halsey's lab in the 9th mission cinematic ending.
The 10th mission is the one I'm trying to get. The achievement, that is.
Leaping from the cliff and landing onto an Elite below, trying to assassinate him and getting the If They Came to Hear Me Beg Achievement
without touching the ground and assassinating at the same time.
Really difficult to do too.
I did it before and I realized, "Oh fuck, I did this on easy and I don't get the achievement for this."
That was my fail to realize that I have to do them either in normal, heroic, or legendary. But since I did a couple attempts to do this, I know where I might land and eventually die and start over. So far the 10th mission is easier to do cuz it's at mission start.
The 11th mission reminded me of playing COD5's last mission after credits level. It has that weird feeling too. It's better if you have up to four players cuz it seems funner that way. This last level which is called Lone Wolf cuz of Noble-Six's previous status as Lone Wolf. The objective is simple: Survive. And there is no legendary ending as far as I can tell. Someone said Noble-Six survives and finds a ship and leaves off planet which highly unlikely. He dies, leaves his/her helmet, and the helmet camera feed switches to Noble-Six's fending off 7 Elites of all kind until killed by the Red one (I think it's a Zealot class, idk) at the end.