You buy the game to have the battles. To have the battles, you have to build the armies. To build the armies, while being harassed by the enemy, you need to understand the system of mass accumulation and engery production, i.e., the "economy." The economy system in SupCom 2 is so different from the first SupCom that the game is unplayable. Oh sure, there are still mass extractors and power plants, but the way the game allows you to manage those resources is not intuitive and not explained. This games stinks! I could beat up supreme AIs 3 to 1 in the first SupCom, but it has been weeks, now, and I still get my butt kicked at the beginner level because the economy system and upgrade archetacture is just baffling. They ruined this game. I wish I had not wasted my money buying SupCom 2. Don't waste yours. What they should do is keep the economy and tech upgrade systems unchanged from SupCom 1, and given their fans new robots and maps. Maybe they will fix it in the future?