is it possable to save while playing co op or do you have to go from start to finnish on each mission, ive just started playing this game, my husband and myself are playing co op curently on season 1 pilot and getting hammered in the 3rd or 4th wave of mutants lol it would be handy to know if we can save after each bit complete so when we get smashed n die we dont have to start allll the way bk a the start lol or is this just wishful thinking and ill be 92 before i complete this part haha :swear: