There was thread on the russian forum about comparing flight models of real Su-25 and this in game. Real pilots argue with each other. One believed that Su-25 game AFM is more similar to real Su-22, others said he was wrong and flight model is correct. Quarrel took long time. Then everybody conceded that there are small differences in each aicraft of the same type (ex. MiG-21 nr 2089654 doesn't = MiG-21 nr 23647890) and Su-25 is as real as it gets.
If you look at F-15, Su-27 or Su-33, their FMs as the supersonic fighters are harder to compute so there are bigger differences but even that is OK.
"Mathematic is the language of nature. Everything around us can be represented and understood through numbers. If You grab the numbers of any system, pattern emerges. There are patterns everywhere in nature..."
So what about flight models? LockOn is build through numbers, not simple scripts. Look http://lockon.co.uk/index.php?end_pos=574&scr=default&lang=en. We are closer and closer, and closer... For real perfection we must wait till real supercomputers. There is too many numbers to calculate even now.