From Addendum to 3-D Helicopter Simulator documentation, version 1.0, 8/28/87.
When fighting against a human opponent, load a helicopter which blends into the background scenery. A little confusion always helps.
Capture the Flag
The "Capture the Flag" scenery file was designed to take advantage of the two player mode where two computers are linked by a modem or null modem. Each player will start on a landing pad and must land on his opponent's landing pad. Along the way you must fly under both of the bridges which separate you while dodging missiles fired by your opponent. You win either by landing on your opponent's base before he lands on yours or by shooting down your opponent. Crashing results in immediate loss (and is considered rather poor manners).
3-D Helicopter Simulator Contest
Sierra is holding a contest in which you challenge other people from across the nation to the "Capture the Flag" game. Each month valuable prizes will be awarded which include Radio Controlled Helicopters. The contest runs from October 1987 through March 1988. A modem is required.
... load a helicopter which blends into the background scenery. A little confusion always helps