from that link:
Despite the best training, some things will be out of your control. Therefore, you must remember that you can’t control everything. It’s part of the preparation. Accept the following facts:
• You will more than likely get hit (hard.)
• Despite your abilities, you may end up on the ground, even if you don’t stay there long.
• Weapons may present themselves, and you may bleed. (Remember, bleeding does not mean certain death. It means only that you've been punctured.)
• You must become familiar with all ranges of combat--this is an absolute!
• You must first learn how to fight in all combat ranges, against all types of aggressors. It may seem like a lot, but it’s the only way you will be prepared for any eventuality. Therefore, you must learn the techniques and tactics of:
1. Firearms: Rifle, shotgun and handgun
2. Edged weapons: Long and short
3. Blunt weapons: Long and short
4. Projectiles: Rocks, slingshots, bottles, knives, etc.
5. Various kicking methods: Thai, French, African, Indonesian, Filipino, Korean, Japanese, American, etc.
6. Various punching methods: Western, Filipino, Chinese, Japanese, Egyptian, Indian, English, etc.
7. All types of close-quarter fighting methods: Filipino, African, Mongolian, Russian, Indonesian, Ethiopian, etc.
8. Different standing grappling methods: Japanese, Swiss, French, Chinese, Korean, Turkish, German, etc.
9. Various ground grappling methods: Brazilian, Indian, English, Japanese, Russian, etc.