Vulcan Heatrays and shields

[StuffPhotonDev]

seems like to be an issue involving an anti-shield widget instead of vulcan, but vulcan will try to force-fire-ground at awkward locations after killing a shielded unit without downing it's shields first. only happens with heatrays.

I tried restricting the weapon at a LUS level to only fire at ground or exsiting units, which did not help the problem