Psi - Warriors ... that's not how they work

Okay, bear with me here. I know there's a Psion career assignment called Psi-Warrior And it portrays them something like this ...

or something like this ...

... but I have a funny feeling that they are more likely to follow the model of the First Earth Battalion and come across like this ...

Psi- Warrior: "I can walk through walls."
Imperial Marine in Battle Dress: "So can I ... but I leave behind great big holes."
Core book psi careers were the first thing I scrapped and came up with my own for in 1e. More for setting reasons than "mine are better," but more GMs should do that. Own your setting and campaign rather than have rules writers make setting/flavor decisions for you by default.