I wish I could actually get a chance to play CoD, at least in its original version. A year or so ago, after a good deal of searching, I managed to find the first CoD game, but after installing it to various PCs (a Windows XP machine, a Windows 7 machine and a Windows 8.1 machine), I've been able to get the starting menu screen which invites me to choose a skill level, then it won't let me proceed any further. Some research on the problem suggests it may be a 'driver' issue, but I don't know how to proceed from there. Very annoying.
The only other CoD game I've played is Finest Hour on the PS2, which was quite challenging but very enjoyable. I've also got CoD 2 for the XBox 360, which I ought to get around to trying sometime.