By MITCHEL MADDUX Last Updated: 10:22 AM, July 13, 2011 / Posted: 2:32 AM, July 13, 2011 The FBI and federal prosecutors have assembled such a damning case against the Colombo crime family, there's been a mob scene of wiseguys looking to plead guilty. Of the 41 Colombos arrested in January during the biggest single-day Mafia roundup in New York history, nearly 25 percent already have admitted their guilt -- including two capos. That percentage is expected to grow significantly in coming weeks, sources said. The wiseguys are taking advantage of a significant "global plea" incentive offered by Brooklyn federal prosecutors -- admit your guilt and get nearly a year knocked off your prison sentence. "It has a mutual benefit," said Vincent Romano, a defense attorney who represents four Colombos in the case. In return, the courts don't get bogged down with a massive and prohibitively expensive mob trial, Romano said.