CIF CnR/MW/RP is a server with multiple 'game modes' running along side each other. You are free to go around all of San Andreas and change what gamemode you're playing by going to another city at any time.
CnR - Cops and Robbers Los Santos is the home of the CnR gamemode. Law enforcement fight crime all like playing as police or criminal. This is the most popular and developed gamemode of the server.
MW - Mafia Wars Las Venturas is the home of the MW gamemode. War between various gangs for control of the city are constant thing. Pick this gamemode if you like team deathmatching and constant violence.
Note: Mafia Wars is not a very well developed gamemode so to play mafia wars you must move to Las Venturas from another city.
RP - Role Play This is not a proper RP server we only have basic things for people who to "RP" like civilian jobs and a basic business system, then again "proper RP" doesn't require scripting, you make it up!