CS/SA5 Difficulties with Selecting/Locking Munitions

Typical use case of this vehicle is like fire a missile at a Aircraft or Helicopter as it pops up to dump all its FNF payload, then Ideally I would like to use the gun to start engaging the stuff as its coming but, but actually targetting it is painful.

I’m having to click several times in the radar interface to get a successful target/lock on any specific munition, tons of false positives etc. Its frusterating all this while your data link completely screws up from you selecting anything besides the initial aircraft/heli much of the time, and your missile then just goes off course entirely.

Is there strategy anyone has found that should fit this vehicle?
I am surprised that it doesn’t have target idenitifcation with its radar system.
Is there features that it has that just aren’t implemented?