What if at the end or in the middle Chief boards the INFINITY with Cortana and Cortana goes all crazy and brings the Infinity down for a suicide mission and Chief has to save everyone. 
Just a suggestion your thoughts??
What if at the end or in the middle Chief boards the INFINITY with Cortana and Cortana goes all crazy and brings the Infinity down for a suicide mission and Chief has to save everyone. Just a suggestion your thoughts??