Welcome to Librarium Online!
srry for askin but im new to ork and i dont know what kos is and i heere so many ppl talking bout it.
That's right. The confusing part is that there are different rules for Speedfreeks/Kult Of Speed and for Evil Suns(the speedy Ork clan). Speed Freeks are totally mobilised(no Ork starts the game with his feet on the ground) while the evil suns are 'Speed Freeks light' using lots of bikes and wartraks alongside the footslogging orks.
Ave Dominus Nox!