Quote Originally Posted by Sined View Post
Hi Guys,
how can I decrease cost of the units? Only using the same units in combines units mode?
Sorry for noob question ^^'
Pretty much as JMich said, you need the same unit when combining units for a chance to decrease unit cost, the closer you get to minimum cost the less chance it will work. Check here, there is a table near the bottom that will tell you your chances of cost reduction.