IMO it is a resident stuff, but kind of trainer or cheater.
All screens come from 2 games with the same opponent, CM:BB and CM:AK. In both games were zombies, in both games purchase were far over the limit, in game with CMAK I found this special squad.
I am not witch-hunter, in fact I was hope that simple patch will solve this problem but designers are not interested in problems with old game, income-explorated. What a pity.
First suggestion was to check limit of purchase just after "GO! click" after purchase. Is it simple patch, isnt it ??
For me, it is the end of this topic.
EOT.