One MP colony ships are fine. There should be hundreds to thousands of bugships flying around, and you won't be able to catch them all. You won't stand a chance of stopping the colony ships if your own border systems are being pillaged by a hundred million Tons of Bugs (100 Dreadnaughts)
If you want, set every planet to build a "Bug Hive" as the first facility. It would provide Spaceyard, Atmosphere ConVersion, and sector cloak (just in case).
The rest of the facilities would be solar resource generators "Bug Farms"
It would really help to have a facility sector cloak that worked, so we could ensure one and only one sector cloak per planet. The bugs will be wasting a lot of resources on building excess cloaking bases, and might eventually run into the base limit

We'd have uncloaked planets and planets with 21 cloak bases. Unless the AI guys know some tricks...
[ 24 January 2002: Message edited by: suicide_junkie ]