As for the character restrictions: I will certainly not allow them to pick either the afformentioned Gunslinger and the Crimson Guard. They are OP to the extreme. Are there any more broken classes that I should be aware of? One of my players likes to powergame and seek the best available solutions for his characters.
Also we'll be using Advanced Dark Heresy 2.0. It should help balancing the game.
Well I not sure how DH 2.0 will help out, but know it will change things
I can say we have Gunslinger in our campaign, and while yes he can be deadly in close combat with his pistols, those same limits effect how he can deal with ranged targets, means bad guys with long guns can keep him at bay if they are ready for him. He not really broken more a good starting punch, and then has to know his role. In this case he is one of the groups Face Man
I'm not sure that the Crimson Guardman is broken, yes in a normal DH cell he starts off overpowered for rank 1, kinda like a SoB. But in a game deal with Tech focus I can a Crimson Guardman being there to protect a Tech priest, but I would assume an all "Tech based group"
On the other hand the
Jedi Knight
I mean Templar Calix Psyker, is way overpowered as designed we have 1 that was designed as excercise by a player and damm he is powerful and can fill # of roles, so good if the team is going to be a small group.