Overall, I quite like the talent tree, but…
(now with colors!)
The nodes in red are annoying; taking 2 of the most uninteresting type of nodes on the tree, just to go down… with the exception of the one occurrence (AFAIK) of this on the Zealot tree (left branch, after grenades), the Vet kinda gets shafted with it.
The nodes in orange, I personally don’t mind the traversal cost but I feel like it’s a pain point for others so I marked it. Could be reduced to 2 nodes to cap the traversal cost. In saying that, I am aware that there are a number of places on the tree with the 3-across nodes, and replacing them all may have unintended consequences
However, the Veteran tree is so damn deep after this point - if you want the interesting red node at the bottom, you need to take 9 passives (not including the 3-across node) to reach it; Ogryn, for comparison, requires 5 passives (not including 3-across) to reach the keystone, then 3 to fully upgrade it
Taking the left-most aura on the Psyker tree locks you out of the rightmost combat ability. I remember some mention of more choices of that nature for Psyker, but restricting combat ability based on aura seems like a somewhat strange choice, especially when Psyker was considered the most tinker-friendly.
Similar to the above; one could argue that there’s some thematic sense to it (Bullgryns are good with melee, Gunluggers are good with guns), as such I’ve marked it orange, but still irksome that you can’t traverse fully.