CS 1.6’s longevity relies on fair play. Using a REPACK injector to gain wallhacks or aim assistance ruins the experience for others. The community is small enough that cheaters are often identified, recorded, and globally blacklisted.
In the context of legitimate modding, an injector is used to load custom features that the vanilla game does not support. These can include: Cs 1.6 Dll Injector REPACK