Screenshots of Halo for the PC, from the site of Gearbox Software that ported the game from the Xbox.
The Master Chief waits for a gravity lift to take him up into the belly of a Covenant cruiser in the PC version of Halo.
The flamethrower is present in the shipping version of Halo for the Xbox, but wasn't completed and inaccessible without hacking. However, it's back and better than ever in the PC version.