The trouble with Defcon is that you can play it at the following four speeds: Too Slow, Too Fast, Way Too Fast, and Just Watching Now. And everybody has to agree on what speed setting to be on, with the slowest setting trumping any other setting.
The game is tremendously shallow in its mechanics, the boats are absolutely no fun to deal with, and there isn't even an option to just turn the music off even though the music is obnoxious, and there is only one fucking map and frankly I don't think it's balanced.
Finally, I understand the graphical desire for having long arcing missile trajectories going across the screen, but it made zero sense as soon as South America wanted to nuke Africa and the missiles had to pass by Europe first. Huh?
Save your money and spend it on Multiwinia. That might be fun! Maybe.