Module Map Prefix Exclusion - Steell/Ultimate-Mapchooser GitHub Wiki
The Map Prefix Exclusion module extends Ultimate Mapchooser's exclusion system to allow users to specify an amount of previously-played map prefixes to be excluded. For example, if you are currently on cp_dustbowl, and the sm_umc_prefixexclude_memory cvar is set to 1 or higher, then all maps whose name beings with "cp" will be excluded from selection.
The list of cvars for the Map Prefix Exclusion module is located in cfg/sourcemod/umc-prefixexclude.cfg.