AoE II AI What is the problem?

This is so bugging me right now, I simply want to have all the villagers working on building stuff instead of one at a time.

Below is my current code:

(defrule
(true)
=>
(set-strategic-number sn-cap-civilian-builders 100)
;(set-strategic-number sn-random-placement-factor 0)
)
(defrule
(true)
=>
(set-strategic-number sn-minimum-civilian-explorers 0)
(set-strategic-number sn-cap-civilian-explorers 0)
(set-strategic-number sn-total-number-explorers 1)
(set-strategic-number sn-number-explore-groups 1)
(set-strategic-number sn-maximum-food-drop-distance 0)
(set-strategic-number sn-maximum-wood-drop-distance 0)
(set-strategic-number sn-maximum-gold-drop-distance 0)
(set-strategic-number sn-maximum-stone-drop-distance 0)
(set-strategic-number sn-maximum-hunt-drop-distance 0)
(set-strategic-number sn-food-gatherer-percentage 0)
(set-strategic-number sn-gold-gatherer-percentage 0)
(set-strategic-number sn-wood-gatherer-percentage 0)
(set-strategic-number sn-stone-gatherer-percentage 0)
(disable-self)
)
(defrule
(building-type-count mill less-than 1)
=>
(build mill)
)
(defrule
(building-type-count barracks less-than 1)
=>
(build barracks)
)

What is the problem?

I'm using AoE II: The Conquerors with patch 1.0c

THanks!