I was playing a game last night, fighting off the altarians. I had surpise attacked them and taken a whole passel of worlds. I knew that a swarm of transports would be coming down my throat, so I quickly built some "hunters." A hunter is just a cargo hull filled to the gills with engines and a single laser. I managed to get about 10 unarmed, unescorted transports this way. First, there were single transports to pick off, then some stacks, then suddenly escorts with the transports! Whoo hoo! The AI figured out what I was doing and compensated. I nearly cheered when my cheesy hunter got swatted the first time I tried to take out a stack with escorts. Of course, this still won't help the Altarians, I alreay own half of their empire now.