Hot zone. Air lock. These are both examples of jargon, aka slang.
The purpose of a literary analysis essay should be to evaluate and analyze how the author portrays his message to the audience. In addition to answering "what" the author's message is, you also need to answer "how" the author does it. Some examples include imagery, similes, metaphors, the word choice, etc.
They want to kill the black guy ( it’s been a long time since I read but if my memories serves me right)