Archer Militia
Meta Vet + Build
Cheap archer unit that can serve as a distraction (trebuchet bait too, maneuver them to get even more trebs!) or a cheap damage dealer, when need be, they can surprisingly penetrate high-tiered units pierce defenses pretty well with a right doctrine set-up. (Remember, unless you're a really really really old vet you don't need to put those high tier docs on them, save them for better higher-tiered units, the tier 1 and 2's will work just fine for greys.)
Hero Damage Doctrine V
Increases damage dealt to heroes by 115 points. Increases all armor penetration by 110 points.
Bowmanship Doctrine V
Arrow Rain deals 75% of the unit's base piercing damage with each hit. Increases piercing damage by 150 points.
Projectile Doctrine V
Increases ammo by 60%. Increases piercing armor penetration by 50 points.
Precision Doctrine V
Increases piercing damage by 120 points. Increases piercing armor penetration by 80 points. Increases rate of fire by 9%.
Rare Archery Doctrine
Increases shooting accuracy by 10%.