You need to scratch build a miniature cover like a kitchen stove ventilator, then install a micro fan above it wired to the flash unit, and run a tube from the micro ventilator to the barrel. Install the mini cover exactly 3,72 mm above the T08, measuring from the bottom lip of the ventilator to the top flat surface of the T08. Remember, this dimension is critical, only 3.72 mm, not 3.7 or 3.75 mm. That way, when you shoot, the smoke from the T08 will then go out the barrel like the real tank....once.