A nanoswarm cast on an AI superweapon a few seconds before firing will cause it to jam (it fires, but nothing happens). If you have an Allied ally with a Proton Collider, wait for it to fire, then cast a nanoswarm on the targeted area to obliterate everything in the area.
You know, when I started playing Ra3 I liked the Empire the most. But after several years of playing, today it even annoys me a little, because in intensive games, which have to be spread over the entire map, it is very difficult to play with them. In my opinion the Soviets are the best faction by far. Anyway, I'll try to make some game with the empire on the ground.