User blog:EternalBlaze/Anyone care to give ideas?

I was thinking about Call of Duty: Modern Warfare 2 and about it's weapons. Since it takes place in 2016, why would it still use older weapons. For example, the WA2000 was designed in the 1970s. Do you think that people would still be using it? Well, I wouldn't know, but I don't think that the armies of 2016 would still be using most of the guns that are in CoD: MW2. What do you guys think?