It has not been more than a month that Xbox Live debuted and the first expansion pack for Call of Duty: Modern Warfare 2 is listed to arrive on PS3 today.

The Stimulus Pack comprises of five new multiplayer maps for the popular shooter, three of which are brand new, with two redrafts of maps from the first Modern Warfare.

The US PSN cost has been confirmed at $14.99, and while there is no formal UK cost, just yet expect it to land at anywhere between £10.49-£10.99, which is a few pennies more than the £10.20, or 1200.

MCV made estimation in the previous month that the Xbox release of the Stimulus Pack made almost £25m for publisher Activision in its first week.