I've played the first two (Behind Enemy Lines and Beyond The Call of Duty) back when I was in high school and I enjoyed them. I just found out that there are 3 more versions thru this complete pack so I knew I had to buy it. No regrets, the other 3 versions are just as good as the first 2 but with better graphics. Although there's a little hiccup with the first 2 versions, they wouldn't run on a Windows Vista 64 bit system as I've found out from my computer. But thanks to Mighty Ape, they gave me a very useful advise on how to make it run. I'm still playing the game these days.