IYO, how was b'elanna's character "assassinated" in "barge of the dead?"
Not just Torres - lots of characters came off looking like a gibbering idiots in that episode, acting completely out of character for the sake of an asinine spirit quest that was trite even when it was presented as a journey into Torres' subconscious (rather than, as the VOY-R chose to interpret it, snubbing it's nose at the rational foundation of the Trek universe, as an actual metaphysical experience).
Torres: "Hey, Captain. Remember when I got that bump on the head and had an anxiety dream about my mother? I didn't get to finish it, so I'd like permission to flirt with suicide in the hope that I'll have the same dream."
Janeway: "But B'Elanna, I thought you rejected Klingon culture, never mind being a devotee of a faith system you've always considered unenlightened."
Torres: "Meh. I apparently changed my mind."
Janeway: "As your captain, I'm sworn to your safety, and I cannot risk losing my chief engineer... but since we've got nothing else to do this week, I'll give into your post-traumatic whining about your mommy issues."
The Doctor: "And as your physician sworn to do no harm, I'll be happy to assist a in medically unnecessary but potentially lethal procedure."
"Barge of the Dead" is one of my all-time hate episodes. It reminds of that equally stupid DS9 episode where Sisko goes all Abramic patriarch on his own son. It was something of an annoyance that a lot of characters on VOY insisted to Torres that Klingon culture was 'in her blood', so to speak, pissing on her own ability to choose, as an individual, the lifestyle of her choice and making the terribly racist conflation of biology and culture. At least elsewhere, Torres gets to fight back against this kind of behaviour, affirming her right to chose to live according to the precepts she prefers; in this episode, she's co-opted by the script into playing her own betrayer.
Fictitiously yours, Trent Roman