Flamers are TERRIBLE!
You NEVER want to get that close to the enemy. Not to mention the fact that it's almost impossible to land both flamers on the same target because they're mounted on opposite sides of the vehicle.
Long story short: Your Baals should never emit a burning discharge. Instead you want to be able to unload them in the face of your enemy while remaining well out of arm's reach.
As to the question itself, yes you can buy a pintle mount storm bolter, but it costs more because the designers (rightly) figured that the additional shots would add more to the vehicle's primary role (as anti-inf) than they would to most other tanks
You NEVER want to get that close to the enemy. Not to mention the fact that it's almost impossible to land both flamers on the same target because they're mounted on opposite sides of the vehicle.
Long story short: Your Baals should never emit a burning discharge. Instead you want to be able to unload them in the face of your enemy while remaining well out of arm's reach.
As to the question itself, yes you can buy a pintle mount storm bolter, but it costs more because the designers (rightly) figured that the additional shots would add more to the vehicle's primary role (as anti-inf) than they would to most other tanks
