truthfully Fooly id throw him into the sons of balentyne then, read the tactics of the mage... works well for ur plans, also while a few lvl of rangers may be needed for better benefits if the party is mostly humans or something one level will give him +2 atk and dmg. Also since you plan on bringing him back over and over this gives better chance for higher ranger level. They have destroyed his post and his commander, argueably they have besmirched his name and standing in the military... let him hunt, let them Know that fear... or death if things go well for him.
As GM go ahead and do slight respec if you want Archer Varning... focus/spec lance for bow and what not... which is a better reason to put him in the last group... time for proper training. Also if bow ditch spirited charge for point blank or something to help the prereqs. Just suggestions for what you could do... i like the hunter idea and wish he had survived my group... of course its hard to survive a rogue going Assassin with an invisibility potion, especially at night.