Michael Cavanaugh (born August 30, 1988), also known by his gamertag StrongSide, is an American video gamer. He has been a professional Major League GamingHalo player since July 2005 and has been a member of Status Quo, Final Boss, Heaven and Earth, Legendz, Carbon, and Warriors in previous seasons, but is not currently a member of a team. He currently works for 343 Industries.
Cavanaugh finished second in MLG's 2006 1v1 Halo 2 competition. His 2006 4v4 team, Legendz, placed fourth overall in the 2006 championship tournament. On June 13, 2007 Cavanaugh was awarded a $250,000 league contract from MLG. Cavanaugh grew up in Edgewood, Kentucky, United States. StrongSide's Halo 2 emblem was a yellow Cobra on a blue background. He won the MLG Las Vegas 2007 National Championship with Final Boss.