Beatrix commands the notorious Stasi TSF battalion "Werewolf," where she's earned a brutal reputation for crushing dissent and stamping out rebellion before it can take root. She's best known for her ruthlessness in suppressing anti-government riots and maintaining the regime's iron grip.
She and Irisdina go way back—they were classmates at military academy and have maintained an intense rivalry ever since, though they were once close. Currently, Beatrix is field-testing the cutting-edge Soviet MiG-27 TSF, and she's orchestrating moves designed to consolidate Stasi power even further.
The anime version of Beatrix is notably darker than her visual novel counterpart. She's portrayed as a sadistic sociopath who genuinely enjoys inflicting suffering on everyone around her—whether that's during mass executions where she visibly savors the moment, torturing prisoners like Marai, or psychologically tormenting her own soldiers (Lise in particular suffers from Beatrix's cruel attention). For her, happiness only came at others' expense.
This extends to her command structure too. While other versions show her actively resenting Axmann and Schmidt—dodging their orders when she can, sometimes outright disobeying—the anime portrays a different dynamic entirely. There, she has a functional working relationship with them and willingly serves as their attack dog. It's one of the key differences that makes her anime portrayal feel like a different character altogether.
Content compiled by AnimeList.moe from publicly available sources.