I believe they should eliminate individual creature roaming on the adventure map. Instead, we should be able to recruit Heroes as long as we have the money to do so. We shoudn't be restricted by weekly hiring or even recruiting creatures in the Castles. We should be able to send specialized Heroes instead of creatures to scout around and spot enemy forces. I always found myself in H4 hunting the last remaining enemy creatures when I defeated all of their Heroes and captured all of their Castles! those creatures were a hindrence to strategy. When all Heroes and Castles for a particular alignment are defeated and captured no creatures should remain.