This tactic, which is by no means realistic, is becoming increasingly popular in the servers, especially by platforms which have tons of missiles. If we take a deeper look into it, an F-16C PoBIT for example, is absolutely incapable of killing an Su-30SM due to the Sukhoi having twice the amount of missiles and being capable of shooting all F-16 missiles.
I think this generate a problem that need to get fixed. Missiles RCM need a nerf.
Funnily enough, it is realistic. Pretty sure the irst can be used like this in combination with its mws and other such systems. Would recommend checking out the typhoon page.
In terms of game balance, i think they should make it either more or less reliable to lock them as at the moment ive had times where ive been able to lock a missile 15km out while other times im struggling to lock them from further out than a km to the point i had to shoot it out the air. Ill try and find the clip, was in a tonka and was trying lock it with a 9l i think by accident lol.