Chicago Sweeper
The Chicago Sweeper is an unlockable submachine gun with an exclusive upgrade that makes its ammunition never run out.
How it works
The weapon list calls the Chicago Sweeper unlockable and says it has an infinite-ammunition option. The weapon reference lists completing Professional difficulty with an A rank as its unlock condition. The upgrade guide likewise describes an A rank on Professional and additionally states a time condition, but the broader weapons reference does not. Submachine guns use submachine gun ammunition; the exclusive upgrade makes ammunition never run out.
Read the supporting references
A source-bounded reference to named weapons, their stated functions, upgrade effects, attachments, and unlock conditions in the 2023 remake. Cases, charms, and crafting are mentioned in the supplied passages but lack enough detail for distinct choice records. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.