Having fought Sawh a good 3 times so far, I've found that starting off with taking superiorities and blockading then tossing nukes is an alright way of doing appreciable damage to a turret. Superiorities to prevent them from double-buying and suiciding tanks, blockade for obvious benefits, and nuking in order to tear down improvements will *eventually* force them to rebuild infra to maintain turreting. Meanwhile, nukes are so slow to deal resistance damage that I can easily use naval or ground battles to beige if I'm ever in danger of actually getting beiged myself. I should probably be using missiles to eliminate their manufacturing instead of the indiscriminate damage from a nuke, but I don't have the guiding satellite project yet so I'm going for the more efficient improvement destruction.