For new/old moders our friend Matt here gave some great advices
http://forum.1cpublishing.eu/showthread.php?t=28258
@ Anderson Carvalho Nice idea for changing unit models, i`m guessing it`s not as simple as moding txt files. Good luck with it. As for suggestions : try to add some rage/frenzy look to orcs foam on mouth, blood in eyes and such( reference Grom Hellscream fighting with pit lord in war3 video
. They are supposed to be blood thirsty race, and they look almost timid in KB game
Also could you change priest/inquisitor models, swordman/guardman they look same, but are completely different units (vampire/vampire lord , imp/scofer imp , elf/hunter . . .)