Hi,   
I've been trying to recreate the usage of IFF and NCTR as per Matt's video (
 ), but I haven't been able to identify the HAFUs with a combination of IFF mode 4 interrogation and the NCTR on.  
I am currently using 2.5.4.29004.   
I recorded myself trying to do so, while heading towards a group of MiG-21bis (also tried with MiG-29s) and nothing happens when I hit sensor depress, even when well within 25nm. In the video, I demonstrate what button I was using and I know the joystick is working properly, because I can do an IFF interrogation with a locked target. I'm assuming that the NCTR mode isn't working properly (you can see that the bandits are never identified in the SA page)-   
I've attached the track file, the mission and uploaded the video to YouTube: 
   
Is this a bug or am I doing something wrong?   
Cheers, 
Nuno iff.trk test.miz