The text discusses the ongoing debate between using a mouse and keyboard versus a controller in first-person shooters (FPS). The author reflects on their experiences with various games, noting that gameplay dynamics can differ significantly based on the input method. In particular, they found that while playing Halo with a mouse and keyboard was enjoyable, it lacked the immersive intensity experienced with a controller. The design of Halo's enemies is noted to complement controller use, enhancing combat engagement. The author also mentions their experience with Call of Duty: Black Ops 7, where they found the controller more intuitive due to design choices favoring controller users, such as analog movement and aim assist. They express surprise at how well classic titles like Doom adapted to controller play, leading to a reevaluation of input preferences in FPS games.