Hi, I’m currently making a 500 point Astra Militarum army and I have a squad of 5 Tempstus Scions (One being a Tempestor). In this squad I have 2 with Special weapons (1 melta, and 1 grenade launcher). I know that for every 5 models in a Tempestus Scion unit, up to two models can have a special weapon. What I want to do is add 4 more models to my unit to bring my total army to 498 points. So my question is, since I have 4 more models in my Scion unit, can I add 1 more special weapon?