Tpassthrough mechanics questions

[Hlander]

I have been getting inconsistent results with the Tpassthrough as well. I have tried a script where Defiants spawn and attack the bombers who have triggered them. But they just fly past them and wave. If I change the flight to Hurricanes it works perfectly. All else remains the same, script and mission etc.

Also scramble = engine on, Idle= engine off for take-off for spawning planes.