[dylan604]

The heat seeker would have problems unless you launched from behind it, which would be problematic if you're launching from the ground, depending on the jamming plane. A steathly plane with the heat sources minimized might not be detected by a heat seeker if launched towards an oncoming source

[ambichook]

heat seekers havent been rear aspect only in decades, all aspect IR missiles are the norm now. the main issue is that most NATO IR missiles are very short range. much easier to instead program your radar guided missile to lock the big glowy thing and explode in its face