@surianca i tried that and it worked for me thanks for the tip -absolout easiest way to beat it for me was get to about 2k starting gold and just fill up on flags (from most to least expensive) your inventory should have all the flags and one +4 damage after the end-boss, then the hard badge is easy;-)
i give it a four because it draws you in and is a really good rts in the beginning.... becomes rather dull though after 4th or 5th mission needs some diversity and such.... but besides that really good concept and game play