While I'm sympathetic to Alan's brother's frustration, this sort of problem comes up all the time is often misunderstood by observers and sometimes particpants. The thing everyone's got to understand is that a wargame isn't a game in the classic sense. It's not a contest where someone's going to get a prize for winning. It's an experiment set up in a particular (often contrived) way to help understand something specific (such as will a new weapon system provide an advantage in a specific circumstance). It sometimes doesn't take much (like someone unexpectedly hacking a computer) to invalidate the experiment. The fact that someone could hack the computer in real-life isn't relevant. There are a million things that could happen in real life. If the computer hack derailed the wargame so that the desired situation didn't happen, the experimenters didn't learn what they wanted to learn and the whole thing would have been wasted.