Not so useless in combat non combat build ?

Hi there guys! Im planning my second playthrough for rogue trader and i'm looking for some cool build ideas. During my first playthrough i made my MC as iconoclast crime lord warrior into executioner , and now i wanted to do something different, usually i dont like to play as some backline character just buffing allies since it's well.. boring, im looking for some sort of build that would let me play different from my previous one and still won't render me useless during fights. This time around i want to ban myself from choosing iconoclast options most of the time , and maybe go domatic or heretical, or maybe full schizo since i've heard that if you follow theodora in the prologue you gonna hear voices in you head. I wanted to do navy officer bladedancer but wont it be too samey compared to warrior?

Have been thinking about noble officer whith swarm of skulls but wouldn't that make me useless in battle ? So many options and so many questons. Thank you in advance for any help!