NPC's wont attack players

[Shocks]

Hi guys, i'm running a server and in the process of creating some events. The current one is having NPC's spawn at set locations with custom weapons.So far they don't spawn with the custom weapons (m9k assault rifle) but they do with the HL2 weapons and most importantly, they do not attack players, they just follow them.

I would appreciate any help that can be given.

/*
		TRILOGY EVENTS DRAFT
*/

/*
		Map Positions & Weapon Settings for entities
*/
    local spawns = {}
    spawns[1] = { position = Vector(823, -209, -79), weapon = "weapon_smg1" }
    spawns[2] = { position = Vector(622, -431, -83), weapon = "weapon_ar2" }

/*
		Main Function
*/
	function EventTest()
		timer.Create( "event1", 10, 0, function()
			if (#ents.FindByName( "CombineGroup1" ) > 0 ) then return end
				for i = 1, #spawns do
					local npc = ents.Create("npc_combine_s")
					npc:SetName("CombineGroup1")
					npc:SetModel("models/csgoprofessional1npc.mdl")
					npc:AddRelationship("player D_HT 999")
					npc:SetPos(spawns[i].position)
					npc:Spawn()
					npc:SetHealth(100)
					npc:Give(spawns[i].weapon)
					npc:Activate()
					for k, v in pairs( player.GetAll() )do v:PrintMessage(HUD_PRINTTALK, "A Terrorist Has Appeared!") end
				end
			end )
	end
/*
		Run script after entities are loaded
*/
	hook.Add( "InitPostEntity", "event1", EventTest )