The Chemist

Geneva Convention? More like Geneva Suggestion! they hate to see a girlboss winning. except she's a cringefail loser and she's losing constantly.

The Chemist is characterized by a somewhat unconventional vision of her line of work — while experimentation is obviously to be expected from anyone working in science, it's hard to deny that she might be taking the "fuck around and find out" approach a bit to the extreme.
Her morals can also get pretty questionable, with her seemingly having no qualms about "testing out" her experiments on her teammates, which has sometimes led to less than optimal situations (Scout knows this best — he was unfortunate enough to become her favorite test subject, for reasons currently unknown), nor with actually making sure everything will be alright after her chemicals are used. The wellbeing of others doesn't seem to concern her at all — she views her job as a chemist as simply to create her arsenal, not to worry about the consequences.
This disregard for safety doesn't seem to depend on any hard feelings towards her teammates, on the contrary: it extends to her own safety, too. To put it simply, she's genuinely extremely intelligent when it comes to understanding formulas or philosophical concepts and full of curiosity, fueled by a deep desire to learn more and more and discover new things, but she lacks any sort of critical thinking skills or self-preservation. Her impulsivity, when combined with the subject matter of her studies, can get worryingly dangerous. But hey, when used against enemies, it gets the job done.