Unit Pricing

[Kirenx]

Loving the game. Something I have noticed though is generally the best units to buy are soldiers and runners. The problem seems to be that unit costs try to scale, yet the more expensive units are not necessarily better. The Heavy costs 4, yet with less movement, is often not as effective as cheaper units. In addition the special units are expensive enough that most games end before they get a chance to come out. This is a shame as the special units are what make each team truly unique. Any thoughts?