This always was a pain in the backside. Any amount of Preachers had and have Talents that make each other stronger, or more durable. Ogryn do too. Many Psykers in a team sometimes made it harder to upkeep stacks, but it wasnt that bad at the end anymore, thanks to them falling one by one.
Vets always negatively affected other Vets, because of the way their toughness regeneration works, and their Ult gets reset and prolonged. No other career cares much about kills, but you get herded to that mindstate thanks to how the tree works, and there is no getting away from it. Not taking Tactical Awareness is not an option for whatever ability you choose. It is, potentially, just that strong.
I dont wanna sound dramatic, but I will still write it anyway. The Vets tree is a failure.
There is, unlike with the other three careers, a clear and strict line you follow to make one weapon type incredibly strong. The Laz weapons. All the other weapons, like Plasma, Revolver, Shotguns, and even the Bolter, dont have a line in the tree that would enable them to get close to the performance of the Laz weapons. We have one weapon type that can get some value out of the tree. The one anomaly, the Headhunter Rifles, pushes through this mess on the back of the ammo availability and Rending changes.
It is awful how Vet got turned into a career that is taking that much value from headshots, after being one that had all the options to still work with weapons that dont needed to be that head focused, while still promoting a headshot based playstyle.
I understand that a melee line was something Vet players might have wanted. I would have preferred Vet as the career that can make every gun work, not the one trick pony the career got turned into. A kill greedy Laz Sniper.
Edit: I originally wrote Ogryns Bruiser also promotes a selfish mindstate by requiring Elite kills. He does, but it does not matter who kills the Elite, as long as the killer is in Coherency range. I dont need to add that this is a lot more healthy for the group. Changing Tactical Awareness to what Bruiser does would not make it such a fight over who gets the kills in a party.

