Modern Warfare 2 tester questions?

I know somebody has to test the game before they ship it and give it reviews so i have some questions for the people whos job it is to do that. First, I was wondering if in MWF2, the time in second chance would be longer than in 1. Second, I was wondering if you can shoot rifles and pistols as fast as in Cod:Waw. That's all for now. Thanks. Also, are there going to be any awesome upgrades that i should know about?