if you're going for a dedicated cryx drop, the minuteman + stormcaller seems more likely to be effective than the hunter. I guess the hunter is nice for knocking off chunks of arc nodes and such, but there are generally less things for it to be shooting at in a cryx army.
I feel like you may have explained this to me at some point before, but why Gastone with no battlegroup? I just looked at his card again and don't see any reason to bring him on that card. his spells are battlegroup only, he can't control or reactivate cygnar jacks... flank seems to be the only active thing on his card, but with really low pow.