Wrong!!"I say as it stands 10 points for what you have now. 12 points if you go with true heavy bolter stats."
+2 points for +12" range, +2 Strength and -2 AP? Seriously? And they can take 10 of them? Are we just going for the most broken unit it is possible to make?
The stubber as listed here is fine as it is. It works nicely as a light machine gun tan is man portable, but it need to be stabilised to fire. It all works.
A regular stubber is strength 4 ap 6 at 36" range. Not saying use a heavy bolter stats.
12 points for +1 str, -1 ap, + 12".
At 12 points its equal to tau. Also unlike Tau if this unit moves they sna fire.
None of the "Stub" weapons listed in the Rulebook have any AP (They're all AP-). There is also no "Rifle" stub gun, only the two Shotgun variaties (Guard & Astartes) and the Pistol.
I personally don't think a renamed Heavy Bolter is good as a Standard Weapon. Not even Marine Devastators and Chaos Havocs have that, and pay at least their base cost again to take them.
This is sort of why I suggested the OLD Hot-shot Lasgun stats. Essentially just a Lasgun with AP5. It could even remain Heavy 3 with that sort of statline.