User blog comment:DYBAD/Character Sheet/@comment-4867780-20141016085735/@comment-4867780-20141016113903

Orks are fearless but they often retreat after sustaining heavy losses, usually to regroup and call in more boyz. There is an in-universe about how they realized that retreating doesnt equal giving, and  This makes the hunting down part a necessity, as due to their

If Eldar foresight and tactics were that good, they would win every battle they take part in - which is far from true. Beside, they are willing to take great risks for specific objectives deemed necessary for the lasting survival of the whole. Foresight exists precisely to pinpoint such necessities, and increase their probability of success.