Knights are only one-tenth of the army. Their main purpose is field battles, wall against wall. What use is guerrilla tactics for them if they won't even enter the forest? Let other types of troops handle that. More mobile and versatile ones.
I'm just saying that people are arguing about the "Hunters")
Added 1 minute ago
Weak and feeble people weren't accepted as knights. If he wants to live, he'll get up and go.