I don't mean to advertise my weapons, but I'll say that the flamethrower doesn't need a cord to attach to a backpack. I made mine with a tank connected to the weapon itself. The napalm is compressed to allow more of it to be stored and jets it out as a flaming gas.
I don't want to sound like I'm bragging though.
I love that bazooka.
It is amazing! I liked Pedro's and I like this one. But your one and his one are completely different:
Yours: Homing, or it looks to be a lock-on and launch
Pedro's: Light, but you have to aim and it will fire without locking-on or other types of rocket-guiding technology.
Yours looks the part. I cannot make a shoulder-mounted rocket launcher as well as this. But I'll try...
Looks like competition