See, the thing is why be a human when you can recruit an ultraterrestrial Yauntja with your ultratoilet(using the Predator mod link I posted and Tee Party mod to equip it on recruited NPC)?
Tee Party: https://www.nexusmods.com/fallout4/m...ab=description
Then the alien hivemind leader receiving XP from companion kills of hostile enemy targets really only has to watch and observe non-violently in ambivalence. Don't go trying to kill aliens and nothing hurts.
Also, with the same console command procedure mentioned previously save as PREDATOR.TXT to give make the Yautja 7' 2" like the original Predator and give it its racial stats.
setrace synth
setscale 1.15
setav strength 30
setav perception 30
setav endurance 30
setav agility 30
setav health 950
Use as BAT PREDATOR in console.
And equip it with the Predator mod items before recruiting with the Tee Party manager unarmed weapon, then give it a name with Rename Anything after recruiting.