 Saber doubted that it would be able to convert Combat Evolved 's split @-@ screen cooperative play to facilitate online play . Greg Hermann , a 343 Industries technical lead who had experience with Bungie technology , assisted Saber in development of a networking solution that would allow online co @-@ op . Since the original game would behave identically when given the same scenario and inputs , only the player inputs needed to be synchronized between players ' Xbox consoles . 
