@jameson okay what you need to do is:
1. Download this: (this is the Podagoesk map)
http://www.armaholic.com/page.php?id=87912. Make a folder called @Podagoesk and put it in your Arma 2 Operation Arrowhead folder and put all the files from the download you have in it.
3: download BOTH BreakingZero [1.8] [Update 2.3] and BreakingZero 2.4 update!
4 Open the DaiZy BreakingPoint Chernarus + Podagorsk 2.3.zip and it should have a @BreakingPointSP or
@breakingzero folder, put it in your Arma 2 Operation Arrowhead folder.
5. then open the update and put those files in the @BreakingPointSP or @breakingzero folder.
6. the start Arma 2 Operation Arrowhead, and go to expansion and activate the Podagorsk and the @BreakingPointSP addons it will ask for you to restart the game, do so and go to singleplayer and you find the mission and your ready to go.