SAM vs Helos on hight altitude, bug or mistake ?

[Swenslim]

I am new in winMBT but the problem I spotted very irritates me. Modern SAM systems and man handled rockets behave very strange against helicopters on a hight altitude. They simply dont see them on the ranges beyond 40 hex !!! This is incorrect and have nothing common with real life. In the game helos are uberweapon but in life they must hide from modern AA on hights below 50 m if they dont want to be shot down. Such systems as BUk, TOR, Tunguska or any western analogs can spot an eliminate helicopters on very low hights and at ranges of few kilometrs, but in the game they see only 40 hex !!!! sorry for my english )