The didact and Librarian

Games Other Halo
1

Warning all of this thread is spoilers .

I was watching the Halo 4 terminal videos seen here http://www.youtube.com/watch?v=2IaL13LFaHw .In the end it has the Librarian shoot the Diadect and lock him away at Requiem .I was wondering has 343 changed the story ? I thought the Didact was on the Ark and The Librarian was trapped on Earth begging him to fire Halo .Could somone please clear this up for me ?Thanks .

2

Actually the Librarian was on the ark if you’ve read some of the halo 3 terminals. Aside from that I don’t know.

3

I could have sworn she was on Earth near the Ark portal.