Love it. Looks like something out of Fallout.

if valve dosent add this in game. THEY ARE A POOPY HEAD.

uh the mods not working for me for some reason

looks like the chemical thrower from Bioshock :3

Looks great and should be added. P.S. the handle could use some work though.

░░░░░▄▄▄░░▄██▄░░░
░░░░░▐▀█▀▌░░░░▀█▄░░░
░░░░░▐█▄█▌░░░░░░▀█▄░░
░░░░░░▀▄▀░░░▄▄▄▄▄▀▀░░
░░░░▄▄▄██▀▀▀▀░░░░░░░
░░░█▀▄▄▄█░▀▀░░
░░░▌░▄▄▄▐▌▀▀▀░░ THIS IS BOB
▄░▐░░░▄▄░█░▀▀ ░░
▀█▌░░░▄░▀█▀░▀ ░░ COPY AND PASTE HIM,
░░░░░░░▄▄▐▌▄▄░░░ SO, HE CAN TAKE
░░░░░░░▀███▀█░▄░░ OVER THE WORKSHOP
░░░░░░▐▌▀▄▀▄▀▐▄░░
░░░░░░▐▀░░░░░░▐▌░░
░░░░░░█░░░░░░░░█░░░ LOLZ

Wait a minute...

Wood + Flame Thrower = +25% damage from flames but -25% ammo per second used and -15% ammo cost

WE DO NOT NEED UNDERTALE COMMENTS

░░░░░▄▄▄░░▄██▄░░░
░░░░░▐▀█▀▌░░░░▀█▄░░░
░░░░░▐█▄█▌░░░░░░▀█▄░░
░░░░░░▀▄▀░░░▄▄▄▄▄▀▀░░
░░░░▄▄▄██▀▀▀▀░░░░░░░
░░░█▀▄▄▄█░▀▀░░
░░░▌░▄▄▄▐▌▀▀▀░░ THIS IS BOB
▄░▐░░░▄▄░█░▀▀ ░░
▀█▌░░░▄░▀█▀░▀ ░░ COPY AND PASTE HIM,
░░░░░░░▄▄▐▌▄▄░░░ SO, HE CAN TAKE
░░░░░░░▀███▀█░▄░░ OVER THE WORKSHOP
░░░░░░▐▌▀▄▀▄▀▐▄░░
░░░░░░▐▀░░░░░░▐▌░░
░░░░░░█░░░░░░░░█░░░ LOLZ

Maybe this one should be all about ammo or air blast since its called the "Combustion Cannon"
right?

stats suggestion
+15% Damage
+25% Afterburn damage
+50% Airblast cost

-15 Spread, -30% Range, +15% Damage, +15% Afterburn Damage, -15% AirBlast Cost.
or
-15% Damage, -15% Afterburn Damage, +15 Range, +15% Spread.
or
-2 Seconds of Afterburn, +25% Damage, +10% Speed On Wearer, -5% AirBlast Cost (When Active)
or
+15% Damage, +15% Afterburn Damage, +5% AirBlast Cost, -15% Speed On Wearer, 10% More Ammo Per Second. (When Active)
or
-25% AirBlast Cost, +15% Airblast PushBack Scale, -15% Damage, -15% AfterBurn Damage
or
+25% Damage and -15% Speed on wearer. (even after not holding it for 5 seconds) (When Active)
or
+25% Spread, +25% AfterBurn Damage, +1 Second of Afterburn, +15% Speed, -25% Switch Speed, No Random Crits

Wood textures need a little work.

nice

The cannon makes the combustion.