In a slow cooker, add the venison roast, hoisen sauce, fish sauce, brown sugar, ginger, minced garlic, soy sauce, sesame oil, water, star anise, cinnamon, ground cloves, fennel, and salt and set on "high" setting for 6 to 8 hours.
When the time is up, it should be fall-apart tender. Shred the meat directly in the liquid so the meat absorbs the juices. (If you want to prepare the meat ahead of time, you can refrigerate the shredded cooked meat up to 3 days, then reheat in a skillet over medium heat until it's heated through completely before serving).
Add carrots, radish, and onion to bowl and sprinkle with 1 teaspoon salt, toss well, and let sit for 10 minutes. Rinse salt off with a quick rinse of water in sink and squeeze out all liquid. Now dissolve 2 Tablespoons sugar and salt in a bowl of 1 cup warm water and 1 cup distilled white vinegar. Add the carrots, radish, and onion, and mix well and let sit for at least 1 hour or overnight, covered, in the refrigerator.
To assemble the sandwiches, evenly spread the mayonnaise on each side of the baguette. Add a few dashes of Liquid Aminos on top of the mayonnaise. Next add a generous helping of shredded meat with all those amazing juices. Top with pickled carrots, radish, and onion, sliced cucumber, and fresh cilantro. (Add optional sliced jalapenos if you want it spicy). Serve immediately.