Hi there.
For learning try out the SA-1, SA-9 and SA-11.
With the exception of the SA-9 both SAMs have a corresponding jammer program and both require chaff dispensing to evade. The SA-1 requires the SAM1 jammer program and the SA-11 requires the SAM2 jammer program. Running the corresponding jammer program and chaffing will help.
The SA-9 is an Infrared Guided SAM. This means there is no Jammer program for it. However if you set up a flare program, you should be okay.
With the jammer programs, you have pull some manoeuvres well to make it effective.
Do some breaks, wing overs and general erratic manoeuvres to break the lock.
I hope this helps