Puppets War has a new Flame Turret bit available over in their webshop. You can also get the flame weapons separately.
From the website:
Set contains one MK II Turret, 2 Flame Cannons and one Bunker Base, if magnets will be used, it’s easl to mount and dismount weapons from Turret. MK II Turret is compatible with all kinds of vehicle weapons available on website.
Designed and sculpted by Puppetswar Atr Team.