No you do not see his face.
yes its a glith!
through the whole Campaign..apporx. 1,312 scarabs you will face.
they live
No, sorry to disappoint you. That helmet never comes off. According to an interview from the bungie essentials disk, they think master chief goes well as a sort of faceless character because it leaves you to imagine what kind of hero lies inside. Or something like that.
halo 3 obviously
Halo 3: ODST is the newest of the two, but not the newest Halo game.
A sneak peak at halo 5, at the end master chief takes off its helmet but we only see his eyes.
The halo time line goes Halo Wars, Halo: Reach, Halo:CE (halo 1), Halo 2, Halo: ODST, Halo 3. Halo 3 and ODST are practically at the same time.
After Halo 3 there was halo wars, halo 3 ODST, and Halo reach. A new company (not Bungie) will be making a Halo 4 and rumor has it there will be a remake of Halo Combat Evolved.
Halo 3 ODST is not for PC but Halo 1 and maybe Halo 2-3 are
it goes halo, halo 2, halo 3, halo 3 odst and soon halo reach will be available