So I've finished the beta and tried out all specializations and noticed a few things that could use changing
Grenadier specialization: His unique artillary turret is rather useless and having to click where to shoot is clunky and if on the same altitude as your enemy you can hardly mark the exact location where you want him to shoot and even after he does you could've killed the enemy yourself anyway. I much rather use my stock turret at least it doesnt stuff while i focus on other things
Sniper rifle turret has some issues as well, and they lie in him not reacting to shoot marked targets, he doesnt even turn at them fast enough, again at this point i rather kill the enemy myself or use the stock turret
Xbow specialist: Xbow is probably the weakest of them all and i've noticed it a bug where it doesnt do damage to robotics, mainly the doggo's.
other than this i havent found anything that wasnt already mentioned