PS: Above i posted some of the people who worked on Halo with Bungie now work for 343 industries..
I know these 3 people for sure do:
Here is the the short list of people who worked on Halo 2 and Halo 3 and now work for 343i:
Frank O'Connor
Chad Armstrong (Shishka)
Vic DeLeon
Frank, worked on Halo 2, Halo 3 and he runs 343 industries..
the other 2 have worked on almost all the halo fps's