Let’s do this!
If it’s more fashionable, call it “Douji Workshop”
Or “Kuai Zhunhen Martial Arts School” – count it as a brand!
Or, if you want to be fast and fierce - "Maxin Martial Arts Hall" (machine guns are pretty tough...)
Or, if you want to be accurate—————— "Heavy Sniper Martial Arts Gym"
The above seems to only give you some inspiration. . .
PS: LZ, this name is really hard to come by!