@koots
those things are pretty easy it start to get hard at chapters 14+. max out the tower the enemy spawn massive amount of enemies use the special to take the strongest one (ie. angels/demons/dragons) then keep on spamming the sturdiest soldier you could summon to keep them at bay
i agree with the autofire being always on or atleast make it sothat when you turn it on it doesn't stop firing when you do other things IE look at other tabs, open the notepad, try to write a comment here, etc.
got all the awards. pretty easy except for mission 12 (memory erase is a pain in the ass and it doesn't help that you keep on getting those chronic crap and the -1 hp in the beggining thing). As for the challenges they are a peice of cake specialy using a black deck