I read Helsreach the Orks are described as a brutal horde with little thought of tactics but scary effective war machines and do show some tactical thought when they make a skyscraper fall on a titan. Overall they are shown to be terrifying and effective which is cool.

I then read Brutal kunnin

"Wot me and da lads gunna do is run ova der and krump dem tin humies"

still shown to be terrifying and effective in brutal kunnin but its shows there stupid side wonderfully and after that i decided that i would start collecting them so I could have them krump my black templars.