There are two things I think to improve the scenario:
First, 1 or 2 unit down in the area can be a coincidence, but 34 aircraft down should have made the Russia go hostile immediately. But I have never been shot at during the scenario. So, I think adding an event for Russia to go hostile once certain amount of unit got shot down could post a more challenging scenario for the players. And I think this could stilll be pretty easy for the player (if they are being smart) as they have all the stealth aircraft and "stealth" weapon (NSM, SDB & the Sub) with them.
Second, maybe adding a bit more ASuW a/c and do a strike mission instead of a patrol could pose a larger threaten to the player's fleet.
And thank you for creating this scenario, which is pratty fun.