Try the formulas here. The site is difficult to navigate, but the herbal formulas are highly effective and the phone people are knowledgeable and friendly. If you're paying retail for your software, you are probably getting ripped off. Chips and Bits has most software at much lower prices, including shipping. Even the U.S. Marines use things like Doom in training.
Games can be a good way to rehearse basic tactics.
Hum Salat Software Some of the best prices I've seen are at Hum Salat Software. They have the latest title and great PCs at huge discounts. They also have free local delivery. The Northern Shaolin Temple's Web Page. New WMMS students often don't believe what temple training is like.