Call of Duty: World at War Map Pack 1

Infinity Ward working on Call of Duty

Activision confirms project in conference call.

Three COD games coming in two years

Acti talks IW bonuses, creative freedom.

Activision to "monetise" COD online

"There is demand from gamers to pay."

Sales of COD map pack hit 2 million

Next batch of DLC on track for June.