Texas Barbecued Brisket

• 12 ozs beer
• 6 mexican chile (ground red new)
• 4 garlic (cloves minced)
• 4 chiltepins (crushed)
• 1 1/2 mesquite wood chips
• 1 onion (chopped)
• 2,700 gr beef brisket
• 120 ml catsup
• 120 ml cider vinegar
• 60 ml worcestershire sauce