SWBF2 is SWBF1 with a few addons. The modes of play are the hardest (and take the longest) to add to the game. The developers have to make the modes, then reprogram all the AI units to work with those modes. Adding one unit to each faction is not too hard. Its just adding a skin to a template and makeing a new AI. Adding new maps is not programming, its graphic design and a different department. The AI programming and testing/debuging of the entire game is what will take the longest.
(I may not agree with thoughts posted under this name)
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