Firefight: Windward is an achievement in Halo 3: ODST. It is obtained by scoring over 200,000 points during a match of Firefight on Windward. It is worth 10 Gamerpoints.
This achievement is represented by an olive square with a bird of prey flanked by a star on each side. When attempting this achievement on solo, allow a minimum of 2 hours to reach the 200,000 points needed to unlock the achievement.[1]
Sources[]