I like that SAM Sim, not only because it is unique, but because is "realistic to the switch", so this is what I searching for and for what I am working for...
If you read the description on every mission (War of attrition scenarios, particulary), you'll see that many times 2 or 3 baterries open fire, but without score a hit... So, there should be a reason for that. If SA-2 were so good on low altitude, why SA-3 was fielded anyway?
Of course, playability is important too - if any average user/simmer didn't score, they won't use the SIM. So the developer should decide what is his primary goal - realism or pleasure of using the SIM. Personally I feel that Hpasp is moving his focus from realism, but it's his right to do whatever he wants. I am greatful for his effort and the SIM!!!