[ETR3(SS)]

So what we have here is the long history of weapon and counter-weapon. Man invents the club, another man invents armor. In this case man created homing torpedoes and another created the countermeasure to spoof those torpedoes. But then, someone got the idea to counter the countermeasure by creating what's known as countermeasure homing. When the torpedo gets to the countermeasure it will turn away and go around it, then continue looking for the true target. The only way to avoid the torpedo was to remain out of it's sensor cone. But, that too, was also countered by wire guidance allowing the firing ship to steer the weapon back towards the intended target.


So the behavior you're seeing in game is accurate to real life.