That was the MC 02 I talked about upthread... retired major general Paul Van Riper led the red cell during the exercise. There are several reasons given for the "reset " First it was that the operational forces involved had only a 36 hour window to conduct actual landings... the rest of the experiment was notional, and since red cell sank the invasion fleet prior it had to re gen IOT allow the exercise to continue. The other issue was that in order to " try out" developing tech red cell was then limited to the effects it could achieve so to allow the experimentation to continue. The issue with this was that at the time a lot of the tech was still theoretical and it was allowed to assume that it would work perfectly in real life...
The way that the initial red cell attack worked out was that general Ripper launched a premptive attack once the scenario indicated that there was no more averting the "war". MC 02 was not General Rippers first red cell war game. He was known for outside the box thinking. The previous years game he noted that the game was too "scripted " and protested when the post assessment report came out putting words in his mouth. MC 02 was truely notable because the results were leaked before the exercise was even over due to concerns that the DOD would report what it wanted to be true and not the actual results of the exercise. Even after hamstringing the red cell after the initial opening moves...