Battlefield – Inside the Design

EA DICE writes:
"Why?
Reading the feedback you guys give us in the gaming forums, it's been clear to us that the game was lacking in a tight infantry map with the PLA army involved. So we set out to create a map with that in mind and this is the result of that. That map, which we have called Operation Blue Pearl, will appear in the upcoming Battlefield 2 Update 1.50 and Battlefield 2142 Update 1.51.

Limitations
As some of you probably know, BF2 has been around for a while and many of the current players have rigs that can run the game at high settings. But to us, creating official content, we still have to keep the low specs of the game in mind designing a map.

That's where the "fog of war" comes in. When we make maps here at DICE we are constantly using programs that check draw-calls on our maps so that, wherever you position yourself on the map, the draw-calls never exceed the maximum limit. (A draw-call is when the game engine must call a texture image into the graphic card's memory for it to be rendered on screen. The more draw-calls the game must make, the more it impacts computer performance so limiting these is one of the cornerstones of game production.)"