COD: MW got so popular because of MP with dedicate servers not sp. We want value for money, what's the point buying a game for £30-£40 that only last 10-15 hours playing time. Have you try OFP2 online? is un-playable, remember the 56k dial-up era? that's what it felt like. I was really looking forward of buying this game for mp not sp.
+1
The COD4 SP took me around 15hrs to complete. But the MP is a different experience altogether.