personally i think you should be mixing your damage in with your range squads it has helped me a lot
Not sure how you mean this but you should not mix damage with range. Say you have 9 armor 6 damage and 15 range, you have just cut the amount of damage you do in the first round which is obviously bad. If you possibly mean that you should use damage in place of armor units then you are reducing the amount of hp buffering your range units not to mention the fact that you will be losing more units that are more expensive than armor.
(Don't use blue text, that is reserved for Mods iirc)