I have always tried to tread carefully with regards to this rule. Is the following request acceptable?
Myself and Lord ***** require 2 volunteers with a unit to partake in a campaign to rid of the beasts in the West. A unit of archers is preferable to mininise losses, however choice of unit type is left to your own discretion.
Please submit your application as soon as possible. We will likely move out this time tomorrow.
I didnt reject any aplications based on a nobles unit type