If your the Allies, to get a good offensive, assault a chronosphere and shift like 6 or so robot tanks into the opposing base to knock out the power. This is useful since they cant be mind controlled, and their gun is good against structures. After the enemies power is down continue to knock out the con yard, then send in a bunch of prism tanks to knok out the men and rest of the buildings. If the enemy has a big amount of tanks and junk, send in some tanks with them.