I think you have to play as Chuck and the AI will control Frank, Frank is only available as player 2. but i see no real reason he would be any better than survivor AI so he may be a distraction at best for you to run and get food.
No, 100% now. Single player you will be Chuck, the only way to play as Frank is to be player 2 in someone elses game. The info trailer is two developers playing. :(
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