"Jungle grill" is a colloquial nickname for Oceanykan underbarrel flamethrowers, which are typically made from a pressurised gas canister connected to a nozzle. These weapons are really short ranged and not good for anything but a close-range torching.
Jungle Grill
Flamethrower
Abilities
Common Attributes - Mechanical
Seeping Flames
Liquid incendiary weapons dowse enemies in fiery fuel, seep through light armour plates and leave behind a pool of raging flames. Gas-based incendiary weapons superheat their targets, frying anything inside to a crisp. The end result is the same: a burnt metal husk that smells of pork barbeque.
EFFECT:
Against units with 3 or less ARM, this weapon acts as if it had Overpass (ignores armour), dealing direct FIRE-DMG and inflicting Burning.
Against units with 4 or more ARM, this weapon cannot do any damage.
Underbarrel Device
Underbarrel weaponry isn't really designed to be fired standalone, but rather fit under the barrel of a rifle.
EFFECT:
This weapon functions as an Attachment 🔦 for larger guns with a compatible mounting system.
Common Attributes - Miscellaneous
Hellfire - Flamethrowers
Flamethrowers can empty their whole fuel tank into a single target or area with the same ease as one would water their garden with a hose.
EFFECT:
This weapon does not suffer from any hit roll penalty when firing automatic bursts, ignoring much of the Auto rules.