Just Rules aims at increasing the strategic options in RA3. It includes things like a more balanced upgrade system, revised protocols and build limits on each unit design to discourage spamming and encourage diverse unit formations and strategies.
The unit limits in AI Friendly as they are different from the ones in Just Rules because they contain no additional units
there is no flak truk
hence the "AI friendly" ;)
The Soviets should get more constricts
The only reason the conscripts are set the same as the others is because of the Molotovs.