Warning: contains spoilers for Winter Guard #1!
One of Earth's strongest Avengers, Civil War II. This is evident in the first few pages of Winter Guard #1, written by Ryan Cady with art by Jan Bazaldua and colors by Toni Infante, in which Captain Marvel uses her authority as a weapon.
Before the events of Winter Guard #1, She-Hulk was captured by the Winter Guard: a Russian superhero team styled after the Avengers. The team has plenty of Russia-themed heavy-hitters, such as Red Guardian (who in the comics was actually married to Black Widow for a time), Ursa Major (a man who can turn into a bear) and two powerful Slavic deities Perun and Chernobog. Yelena Belova, no ally of the Winter Guard, is nevertheless taken into custody by Captain Marvel.
In a secure Avengers holding facility in the Pacific Northwest, Captain Marvel interrogates Yelena, asking her about the whereabouts of She-Hulk. Treating her more like an enemy than an ally, she pounds the table, demanding information. "It's been three days. You have answers - and I need them." Captain Marvel says across the table. For someone as upstanding and principled as Captain America, this type of interrogation would be quite out of character, but for Captain Marvel, it's entirely plausible why she's playing the "bad cop": she considers government agencies a tool rather than a hindrance.
During the Civil War II event, Carol believed, and acted upon, absolutes. The Inhuman Ulysses Cain gained the power to see the future, and Captain Marvel believed that Ulysses could - and should - be used to neutralize threats before they happen. She was unwavering in this position, and many fans believed Civil War II did a disservice to Captain Marvel's character by turning her into, effectively, Iron Man from the first Civil War event: unwavering to the point of irrationality. But Captain Marvel is perhaps even more authoritarian than Iron Man and uses it to her advantage. In this respect, she embodies John Walker's worst trait: leaning on authority, confident it will protect her as a shield while wielding it as a sword against enemies.
Though Captain Marvel actually ended up killing Iron Man at the end of Civil War II, she still maintained he was in the wrong and would make the same decisions all over again. She's certainly not evil by any means, but she's one of the most authoritarian Avengers on the team. With Captain Marvel's pro-establishment tendencies being the farthest trait from Captain America, it's no wonder she has a difficult time dealing with Yelena Belova.
