The response to the 4 questions are here...
In this blog the author is trying to show the development of the US government and military towards the war in Iraq.
The tools that this author uses is a lot of imagery. He has some pictures that show how the game works. And he also uses his experience playing the game.
These tools help the reader to experience the writers thought process and opinion. It helps you see a new soft side of the issue that I think most have not seen before.
He needs the audience to see a new side of the military and to create an understanding with the military not yet achieved. He shows how the military has changed and how they are trying this new thing. This will hopefully improve the public feeling towards the war in Iraq and the military.
I like this blog post as it shows a new side of the Military that I haven't ever seen.