Just give it a jamming field that creates a decoy unit or two. Give it build power to make the entities, it takes like 8-10 seconds to build the decoy and the decoys are "T5" for the purposes of AA targeting (they take priority over the bug.) Give it an upper limit of like 10ish entities with just enough health to eat a single sam firing cycle and boom bug is good. It makes the first pass of ASF and initial barrage of sams ineffective, EZ.
EDIT: Like the jamming crystals in the campaign and a czar, that would work. (this would also use assets that already exist rather than making new ones)