Entity gets all jittery and stupid when sequence is applied.

[DarkAura]

So my "NPC" who is supposed to just stand there with a weapon out has decided, instead of doing the animation, which is just the Idle rifle carry act, he will have a seizure. I have no idea why he does this, but he just freaks out as if the animation is being called over and over again instantly.
Here is the code, I know that isn't the right animation, but literally any of these poses don't work properly.
AddCSLuaFile("cl_init.lua")
AddCSLuaFile("shared.lua")

include("shared.lua")

local modelselect =
{
"models/player/smitty/bf2_reg/st_sergeant/st_sergeant.mdl"
}

ENT.WeaponData = { // *** had to change the "combine_smg1" and the others to actual weapons that exist in vanilla gmod

    ["bf2017_dc15s"] = {sound=Sound("Weapon_AR2.Single"),     damage=20,delay=0.11,cone=0.1775,range=750,type="AR2Tracer",act=ACT_RANGE_ATTACK_AR2,        actm=ACT_RUN_AIM_RIFLE,     gest=ACT_GESTURE_RANGE_ATTACK_AR2},
}

ENT.Walk = ACT_RUN_AIM_RIFLE

function ENT:GetGuns()

    return {"bf2017_dc15s"} // ***

end

function ENT:GetActiveWeapon()

    return self.Weapon

end

function ENT:Initialize()
    self:SetModel(modelselect[math.random(1, #modelselect)])
    self:SetHullType(HULL_HUMAN)
    self:SetHullSizeNormal()
    self:SetNPCState(NPC_STATE_SCRIPT)
    self:SetSolid(SOLID_BBOX)
    self:SetInitializeCapabilities()
    self:SetUseType(SIMPLE_USE) -- Makes the ENT.Use hook only get called once at every use.
    self:DropToFloor()
    self:SetMaxYawSpeed(35)
    for k, v in pairs(player.GetAll()) do
        self:SetTarget(v)
    end

    local gun = table.Random(self:GetGuns())

        if type(gun) == "table" then

            gun = gun[1]

        end

    self:GiveWeapon(gun)

    if self.WeaponData[gun] then

        self.Weapon.NPCShoot_Primary = nil

    end
end

function ENT:Think()
    self:SetSequence(ACT_GESTURE_RANGE_ATTACK1)
        self:NextThink( 6 ) -- Set the next think for the serverside hook to be the next frame/tick
    end
end

function ENT:SetInitializeCapabilities()
    self:CapabilitiesAdd(bit.bor(CAP_ANIMATEDFACE))
    self:CapabilitiesAdd(bit.bor(CAP_TURN_HEAD))
    self:CapabilitiesAdd(bit.bor(CAP_MOVE_GROUND))
    self:CapabilitiesAdd(bit.bor(CAP_OPEN_DOORS))
    self:CapabilitiesAdd(bit.bor(CAP_AUTO_DOORS))
    self:CapabilitiesAdd(bit.bor(CAP_MOVE_JUMP))
end

util.AddNetworkString("Smirk")

function ENT:AcceptInput(input, activator, caller)
    if input == "Use" then
        net.Start("Smirk")
        net.Send(caller)
    end
end

function ENT:SelectSchedule()
    local MyNearbyTargets = ents.FindInSphere(self:GetPos(),150)
    if (!MyNearbyTargets) then return end
    for k,v in pairs(MyNearbyTargets) do
        if v:IsPlayer() then
            self:SetSchedule(SCHED_TARGET_FACE)
        end
    end
end

function ENT:GiveWeapon(class)

    local ent = self

    if !IsValid(ent) then return end

    if ent.Weapon then ent.Weapon:Remove() end

    local att = "anim_attachment_RH"

    local shootpos = ent:GetAttachment(ent:LookupAttachment(att))

    local wep = ents.Create(class)

    wep:SetOwner(ent)

    wep:SetPos(shootpos.Pos)

    --wep:SetAngles(ang)

    wep:Spawn()

    wep.DontPickUp = true

    wep:SetSolid(SOLID_NONE)

    wep:SetParent(ent)

    wep:Fire("setparentattachment", "anim_attachment_RH")

    wep:AddEffects(EF_BONEMERGE)

    wep:SetAngles(ent:GetForward():Angle())

    self.Weapon = wep // ***

end

function ENT:GetActiveWeapon()

    return self.Weapon

end

hook.Add("PlayerCanPickupWeapon","NoPickUpGun",function(ply,ent)

    return not ent.DontPickUp

end)