halo 3

United States
July 21, 2009 9:03am CST
hello you guys. in halo 3 for the mission cortona i need help beating it. i am up the the part right when you get cortona and you have to explode those machines. every time i go and try to do it i get killed. any one can help me. also would it be easy to do it with multiplayer. but will i unlock the achivemnt though. some one please help me. also leave something that i can talk about. also if anyone has anything that i can write about just tell me. thanks
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