If your deck isn't balanced, you'll lose to the chem buggy every time. I used to have only infantry and tech units. Whenever a chem buggy came out, I would lose because I couldn't build my tech units since I didn't have anything to defend my harvesters.
Now that I have middle tiered units, I don't lose all the time. You need air power or a war factory. Once you have those, a chem buggy is useless.
For example. You start out with infantry. Out comes the chem buggy and it starts tearing your infantry apart. You come out with a pitbull or orca and now the chem buggy is useless.
It's all about balance. You need 3 factories to win more often. If you only have two, you'll lose whenever your opponent comes out with a unit that you can't counter.
The same goes if you only have infantry and air or war factory. Once tech units come out, you are toast. The same goes with only having air or war factory and tech units. If you only use air or war factory to get to tech units, infantry will destroy your air or war factory.
Gotta have all three.
