"make it humanoid health -= 350 constantly when bool == true and constantly keep getting touching parts when bool == true"

-- server script 
local part = script.Parent.TriggerMG
local s = script.Parent.TriggerMG.Shoot
local shots = script.Parent.Browning.Gunshots
local bool = script.Parent.Shoot
local seat = script.Parent.Parent.Body.Seatt

local function onPartTouched(otherPart)
	local model = otherPart.Parent
	local humanoid = model:FindFirstChild("Zombie")
	if bool.Value == true then
		local transparencySequence = NumberSequence.new(0)
		shots.FX.Transparency = transparencySequence
		shots.FlashFX.Enabled = true
		s:Play()
		if humanoid then
			while bool.Value == true do
				humanoid.Health -= 350
				wait(1)
			end
		end
	elseif bool.Value == false then
		wait(0.6)
		local transparencySequence1 = NumberSequence.new(1)
		shots.FX.Transparency = transparencySequence1
		shots.FlashFX.Enabled = false
		s:Stop()
	end
end

bool.Changed:Connect(function()
	while bool.Value == true do
		local partsTouching = part:GetTouchingParts()
		for i, otherPart in ipairs(partsTouching) do
			onPartTouched(otherPart)
		end
		wait(1)
	end
end)