I came to a conclusion after playing the game where one has to fly the Raider in formation, Apollo and Starbuck were either the luckiest two in the galaxy or the Cylons were mindless drones. It is very difficult to do. When did they train for the mission? A Raider flies much differently than the Colonial Viper. Also if the Cylons ran a scan at any time the gimmick would be up. Plus the fact that they flew straight into the middle of a patrol.
