Please, tweak these features of the vet class they're a genuine problem

Like anything in the game. But Veteran can be good at melee and with few talents. The zealot tree has no so powerful melee talent. You achieve the same result by picking a lot of talents.
At contrary, the zealot is far behind a veteran with ranged weapon.
That’s why I say that veteran is really strong. You get good melee + ranged damages far above the zealot. At contrary the zealot has better melee damage but poor ranged damages. In the end, vet has more power.

No amazing skill. Just few talents.
Aim the head, wait enough time to land a critic and see crushers dying.
And without these talents and with a melee orientated build you kill the crusher in 2 headshots. The zealot need 3. With the melee build you can kill all non ogryn elite/special in one shot (so sufficient in true game).

You missed when players were using stealth and griefing other players. It has solved also the zealot with thunderhammer that could 2 shots the DH.

here the patch notes:

Not sure it is possible… but, not significative as I have not met this situation since the quoted nerf above.
By the way, Thunderhammer is a poor weapon that has been left behind with the patch 13

No it is not. Train yourself with it. VoC is really good, and I think that it is one of the strongest ability of the game. However, no need to compare, this is different gameplays.

All keystones are bad. End of the story, at least for me.
I’ve never asked for these keystones that have restricted by a lot my possiblities. But they are here and I don’t use them.
What I can say is that without them, I have builds really strong with a veteran.

My actual build is a 100% toughness build with shovel and kantrael Ia. I may try specialist, just to look how it would work. However, it will means a build for that, and I feel like I loose too much for so few advantages. I hate switching weapon when not needed.

I never asked a vet stealth nerf.
I have always said that there is a problem with one stealth build and this is on zealot with a dagger (and maybe mobility needs a nerf on dagger).

I disagree. What is the sol;utions?
They buff all weapons to the plasma gun level, and then they would need to double the HP and resist of all enemies… at the end this is 4 times the work for the same result.

Or other solution, they add 5 new levels of difficulty for a game that lacks of players and have 7 difficulties (5 in normal - 2 in auric). I really don’t think it is a solution. Damnation has to be hard.
No doubt that, one day, we will get a damnation+… but this won’t be for balancing the game after buffing 80% of the weapons.

It is better to nerf what is too strong. But at same time (or just after), they need to buff what need to be buffed. There are useless/bad designed talents in all skill tree (at least on zealot, veteran and ogryn). They should be reworked.
And there’s a need to buff several weapons. But… there’s also a need to nerf too strong talents and weapons.

New conditions could be good (perso I just want an infinite horde condition), but won’t solve anything. What is too strong will remain too strong.