It seems that the missile targeting system doesn't work properly? Like for example in the bomber escort mission when there are two enemies at the same time, it will lock onto one, let me fire a missile but then the second one still has a gray box around it instead of green so I can't shoot it down with a missile and there's not enough time to shoot it down with my guns before it fires a missile at the bomber.
@Sofa oh that makes sense thanks
There's a button you can use to cycle targets. I forget what it is by default.