 From there McMillian played with many teams including St Vincents, Tolka Rovers, Tridents, UCD Marian, North Mon and Denny Notre Dame.McMillian has won four Irish National Cups (one with North Mon and three with Notre Dame), including one cup final MVP for Notre Dame in the 1996 cup final.During that season Lennie received the Irish Sportsman of the week award (an award given out by the Irish Independent) for his performance against Star of the Sea in the Sprite cup quarter final.