Do we know for sure that noble six is dead?

Answer 1

After you destroy the covenant crusier and the credits role theres a level called lone wolf were your objective is to survive.

from theater i found out that it's imposable to survive because the game wipes out your shields and basicly all your health.

Answer 2

At the end of the last level, Six 's mask falls off, (Although you don't see his face!) He battles 5 elites but they knock him down and take turns stabbing him. Sadly, he dies. Here is a list of who died first to last.

1. Jorge Noble 5

2. Kat Noble 2

3. Carter Noble 1

4. Emile Noble 4

5. Noble 6

After he leaves with that Doctor, you do not see Jun for the rest of the game.

Answer 3

Probably because in Halo Reach, we didn't see him die. Also,he could be Master Chief because he could've change his name and have been in that chamber that he came out of. That chamber might've healed him and he could have started a new life as Master Chief.

Answer 4

yes he is dead