Banh Mi Sandwhiches

Name: Banh Mi Sandwhiches
Ingredients: 6 crusty rolls or baguette; 4 persian cucumbers, sliced; 1/2 cup washed mint leaves; 1/2 cup washed cilantro sprigs; 1 daikon radish, peeled and cut into matchstick size pieces; 2 large carrots, peeled and cut into matchstick size pieces; 3 tablespoons sugar, divided; 2 tablespoons salt, divided; 1 cup rice vinegar; 1 cup water; 1/2 cup mayo; 1 teaspoon maggi seasoning; 1 teaspoon sriracha; 2 tablespoons chopped chives; 2 pork tenderloins, sliced thin; 3 tablespoons soy sauce; 2 tablespoons brown sugar; 1 tablespoon fish sauce; 2 teaspoons sesame oil; 3 garlic cloves, minced; 1 small shallot, minced; 1 tablespoon lemongrass, minced