I love the chance to participate in the OW beta, and one thing caught my eye: Operators, the grunt Guardsmen which is even not an official title, start with a Mind Impulse Unit according to my version of the book. I understand, as it is nice to give them more bonuses to driving their vehicles.
Yet even according to the OW book the MIU is "only granted to the priests of the Adeptus Mechanicus" according to the MIU Weapon Interference, although both are only Rare in this version. Futhermore, most of the other 40k background gives MIU only to very few selected persons, primary of course the Princeps who drive Imperial Titans.
I understand FFG wants the Operators to be good pilots, but this is quite extreme and at least I think quite opposite of background. Futhermore, a common craftmanship MIU is almost the best gear for an Operator, leaving no ways to advance (barring good quality one). I would suggest that they could start with an Interface Port, which lacks the bonus for Operating but is still handy, although I see no reason why the Imperial Guard would put even that cybernetic to just "normal grunts who happen to be good at piloting".
The MIU should be a reward for outstanding Operators, not something every single one should get.
40k is not Halo or some other scifi-settings, where everyone has something like this or cybernetic implants. Bionics are often rare and reserved to those who deserve them. So no to starting grunts, but to actual Tank Commanders (which Operators arent, at least in the beginning).