Over buying the market is important to lock out realists and how I lock out other Spam Airliners is buying all the gates so they are forced to build terminals but you know most Spam Airliners never build terminasl and I force them out of that market share.
This strategy is capturing every route possible and buying 1000-3000 planes of TU-204-100, TU-204-300 also it works with the United States the best then I make sure to fly all routes. It took me 15 minutes of play time and 4 hours of the bot to accomplish 8Billion so this works best for beaten realists and Spam Airlines.