I remember playing a PC strategy game in the early 2000s, based on tanks.
You had a building that constantly spawned tanks, and you could control them. The enemy had the same. The tanks could destroy each other, but not the buildings. Instead, "destroyed" buildings were converted to your side.
You also had some special powers, such as spawning turrets and calling in a dropship to drop some tanks at a specific point.
The main building had a UFO thingy floating over it, and it spawned tanks CONSTANTLY. I mean you didn't even have to tell it to spawn them. The types of tanks I remember are a tank with a short barrel, and a tank with a long one. The graphics were nice and smooth, and the gameplay was real time, rather than turn based.
Don't have a clue about what it was called. But it was a nice game. Does anyone know its name?