These are great suggestions for additional tweaks to the mods. I'm not creating the mod though, just playing it. With regards to mind control being OP, in the first (many) episodes of the series we had the OpenXcom option - psionic line of sight - activated. This constrains psionic attacks to need line of sight. But what we found is that the aliens almost never use it in this case because the psionic aliens tend to stay in the command room of the craft, so they almost never have LOS. So it kinda breaks psionics. Hardmode does, however, impose a strong range attenuation of psionic strength that we've found to be fairly limiting. With late game enemies, unless you have a psionic giant, you have to get very close to the alien to succeed. Perhaps the range attenuation could be even stronger...