local function OnUnitDied(pUnit, Event)
    pUnit:SpawnCreature(entry, x, y, z, o, 35, 0, weaponslot1, weaponslot2, weaponslot3, 1, 0) -- change entry, x, y, z, o and weaponslot1/2/3 to items you want to be equipped
end

RegisterUnitEvent(EntryIDHere, 4, "OnUnitDied") - change entryid to 5000 example