Imagine I eliminated advanced factories and instead created a new factory that can be built by basic fabricators, let's call it the Meta factory. It costs 1,000,000 metal to produce. The Meta factory fabricates at 1,000 metal per second and uses 100,000 energy. You can build a new Meta fabricator for only 100,000 metal. Once you have the truly awesome Meta fabricator, it fabricates at 750 metal per second and uses 75,000 energy. It can build metal extractors that produce 250 metal per second for only 7,500 metal, and similarly good energy plants. For another 50,000,000 metal it can build a giant "I WIN" unit that has one attack that kills all enemies everywhere. Clearly the gap between the power of the "I WIN" unit vs the basic units is super strong, and by definition makes them irrelevant. Also, the economic power of Meta tier dwarfs that of basic tier as well. What do you do about this balance change? Do you try and rush to the Meta tier as quickly as possible? What does that mean? Does it mean that you need to expand in the basic tier and try to take over as much territory as you can so you have the best possible chance to afford it? If you rush it, do you think you will get killed by basic tier units while you try to build it? Once you build your Meta factory, how will you afford to run it to build the fabricator? And then how can you afford to run the fabricator on your basic economy? Will you use the Meta tier economy to build a neverending horde of basic tier units and try to win that way, or will you then continue your rush to the "I WIN" unit? Or will you pepper your opponents with a seemingly endless supply of rhetorical questions? Does you plan change if the Meta fabricator can make a unit cannon?