Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal Summoned: You can Special Summon 2 Level 4 or lower Warrior monsters with different names from your hand in Defense Position.
--Ｃ戦場の指揮官 コロネル
--Colonel on C-String
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 2 level 4 or lower Warrior monsters from the hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
function s.filter(c,e,tp)
	return c:IsRace(RACE_WARRIOR) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return false end
		if Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return false end
		local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_HAND,0,nil,e,tp)
		return g:GetClassCount(Card.GetCode)>=2
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,2,tp,LOCATION_HAND)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) or Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return end
	local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_HAND,0,nil,e,tp)
	if #g==0 then return end
	local sg=aux.SelectUnselectGroup(g,e,tp,2,2,aux.dncheck,1,tp,HINTMSG_SPSUMMON)
	if #sg>0 then
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP_DEFENSE)
	end
end