Yup Erwin knew his family well alright. He knew his family so well that in the past he loved Marie but he wanted to be a scout and chose not to follow through with his love intrest.
Differences from the manga: Manga: Marlowe and Hitch are found by Levi and the others during the night. Levi and his squad kidnap the Central Military Police officer in the division's headquarters, located in the middle of a meadow. Anime: Marlowe and Hitch are found by Levi and the others in broad daylight. Levi and his squad kidnap the Central Military Police officer at a checkpoint blocking a route.
Fair enough. However, and I'm sure you didn't mean this, your comment is a spoiler. I'm not sure how far ahead they are on patron, so maybe they already know, but still got to be careful about that. Just a friendly rebuke. Lol
Fun Fact: This episode, along with other two, are the only three to be rated TV-MA when they aired on American television, unlike the others, which were rated TV-14-DLSV 🤔🤔🤔