Specific techs -> common techs

[Dragoon]

I'm creating a simple scenario with a completely revised tech tree. I want each tribe to have SOME tribe-specific units, as well as "international" ones. So I give each tribe a specific tech, but the stupid AI starts trading techs like there's no tomorrow. Within a few turns, everyone has all 'specific' techs. To be short, how do I keep those units were they belong?

Greetings from Middleburg

[Giant Squid]

Set the prerequisites to (no, no) or disable negotiations. Preferable the former.

[Cam]

Dragoon,

Giant Squid's on the money, however for a more detailed explanation, see the Scenario League's Design Tips section, specifically Blackclove's tips on multiple tech' trees (two parts);
sleague.apolyton.net/Guides/tip15_0499.shtml and sleague.apolyton.net/Guides/tip16_0499.shtml

[This message has been edited by Cam (edited July 10, 1999).]