Plan your attacks and defenses around the surrounding landscape, and try to use it to your advantage. Stay organized Try to keep your lines of troops orderly and organized. This takes practice, but once mastered will do wonders for the effectiveness of your scraps. Avoid a tangled web of pipes that are hard to reorganize and backtrack. Stick to single lines of attack which can easily be redirected to another attack, or to defend.
Paratroopers are expensive, it costs two nanobots to land one.
Don't be the victim of friendly fire by aiming poorly. Test your gun destination with a small burst before laying on the thick guns. A cool technique with guns Build up two block of troops next to an enemy block. From the front block of troops take out any pipes feeding the enemy block. Next, dump your front line block into the now vacated enemy square and quickly add support lines.