I tried remapping the keybindings but this mod still doesn't work for me for some reason. // Kerbal Space Program - Part Config // // PART { // --- general parameters --- name = Gau 19 module = Part author = DYJ // --- asset parameters --- mesh = model.mu scale = 1 rescaleFactor = 1 // --- node definitions --- node_stack_bottom = 0.0, -0.53289, 0.0, 0.0, 1.0, 0.0 node_attach = 0.0, 0.0, -0.15366, 0.0, 0.0, 1.0, 1 // --- editor parameters --- cost = 850 category = 0 subcategory = 0 title = Gau-19 manufacturer = Damned Industries description = The GAU-19 is an electrically driven Gatling gun that fires the .50 BMG (12.7×99mm) cartridge at 1000RPM. In other words: PEWPEWPEW! // attachment rules: stack, srfAttach, allowStack, allowSrfAttach, allowCollision attachRules = 1,1,1,1,0 // --- standard part parameters --- mass = 1.0 dragModelType = default maximum_drag = 0.2 minimum_drag = 0.3 angularDrag = 2 crashTolerance = 6 breakingForce = 50000 breakingTorque = 50000 maxTemp = 3400 MODULE { name = DYJMachinegun ProjectileType = bullet //keyFire = joystick button 0 keyFire = [0] BulletMass = 0.45 BulletDrag = 0.03 BulletPower = 120 RocketPower = 10 recoilreductionfactor = 0.01 fireRate = 0.08 lackofkrakensbanontrailrendererscompensation = 0.1 rotationSpeed = 1200 isGatling = true heatProduction = 800 ProjectileFileLoc = Parts/DYJgau19/Bullet/ CasingFileLoc = Parts/DYJgau19/Casing/ } MODULE { name = ModuleAnimateHeat ThermalAnim = Thermalanim } MODULE { name = Sound keyFire = [0] // } } Is there something I missed (note the last part is from the sound attachment posted earlier). Thanks in advance for any input.