Theatre and Campaign

Hi all,

I have a question for those in the know, regarding games such as Halo 3, Halo 3 ODST and their associated theatre mode to show entire Campaign clips. Where in multiplayer, you were able to play but also reverse and replay in a single sitting, whereas were you to play a Campaign clip, you were prevented from reversing the clip. This meant you would have to restart the clip entirely if you wanted to go back to a certain point. As one would expect, very annoying if you wanted to capture a certain part in an hour+ long sitting for you to miss it and having to restart the clip and fast forward all over again.

My question is, why? Why weren’t you able to rewind in Campaign clips?

Cheers

edit: not Halo Reach