this is a video i have come across on youtube that i think is extremly accurate. he explaines how you might be playing at the master cheif(seirra 117) in the game. he makes a good point about this when he talks about how all the other player in the reach picture are character in the chiefs squad back in the early days of the fall of reach. he explains to that in the picture it looks as if the characters are not wearing mark V armour but mark IV wich means the campaign will probley have trianging or events leading up to the falll of reach for a portion of the game beacuase the spartans are only givin mark V before they go down to reach to battle the covenent. remember i did not say this i just found the video so dont put me down for it and just give your opions on it.
http://www.youtube.com/watch?v=qA7KphkwPLg