I used DB Editor 1.8 to modify unit.
When i opened DB Editor, i could choose Patch4 or Patch5 or both.
I tried all of them (first choose one and second choose both). But after i save and play road to independence saved game, it doesn't change unit spec.
I tired "Line Infantry". I found one that is almost same (everything same like melee, charge and some others) except cost and modified it. but it did not work.

can anybody help?

thanks