It is nothing about derailing the topic. I just want to remind you the reality of the modern war: it is a system vs. system war. I guess you may be the fan of knight novel, because you are so indulged in the discussion of one piece of equipment vs. another piece of equipment.
You mentioned the ground-based radar stations, fine. But how could you guarantee the safety of the radar stations in war time?
You also mentioned Su30Mk2, very cool. But the original topic you brought here is Su22. Is it "derailing the topic"?
BTW, if your Su30 dares to open the radar on air, could you imagine how shine it will be if you view it from the radar screen of 052D or 052C?
P.S. how many Su30 you have? If you sent them to fight against the Chinese fleet, how you grantee the air defense safety of the North Vietnam? We could send J11/J10 from Hainan, from Guangdong, from Yunnan, from Guangxi to do a Hanoi tour