Combine the garlic, lime juice, tequila, soy sauce, cilantro, peppers, cumin, and black pepper in a resealable plastic gallon bag. Add the steak and let marinate in refrigerator for 2 hours. Remove from refrigerator, let marinate at room temperature another 30 to 45 minutes.

Prepare grill to medium-high heat. Remove steak from marinade, reserving marinade. Put marinade in small sauce pot and bring to a boil, then strain and reserve. Put tortillas on the corner of the grill and flip package a few times to heat through while steak is cooking

Place steak on the grill, cook for 4 minutes, turn 180 degrees, and cook for 3 minutes more (to create cross grill marks). Flip over and finish cooking for 3 to 5 minutes, depending on desired doneness. Remove from grill to a cutting board, and let rest, lightly covered, for 5 minutes. Slice against grain; serve immediately with reserved marinade, garnishes, tortillas, and hot sauce.