So I tried to do 2 things with that weapon above.

1. Give the dragon tank the primary weapon as DragonTankFlameWeaponUpgraded and took away the upgraded one.
This meant I could force fire with the dragon tank but couldn't actually shoot at anything.

2. (The main problem) I wanted to make another dragon-ish, I added the same weapon to it but it just won't shoot, there is not shooting sign, if I add DragonTankFlameWeapon to it then it shoots just fine, but won't shoot with the DragonTankFlameWeaponUpgraded.

Any thoughts?

I originally thought it was my edits,
I tried to copy the full weapon for DragonTankFlameWeaponUpgraded and changed the name to something else and made the weapon a bit stronger but didn't work. So then I tried it with the original DragonTankFlameWeaponUpgraded but I got the problem mentioned above.