Sorry to kill you all hope but even with mod tools you can't make random position start.
If you open singleplayercampaings.xml or same for multiplayer you will se that starting positions are predefinded. You can't change them. It will be always same thnig. All you can do ist to create X number of campaigns with x different starting positions.
But the problem is not really starting positions. The problem is the AI. It is broken.
EaW: Total Realism
TR mod team status: TR Advisor, programmer, map maker, Multimedia developer