Help with 'for' loops and using in GUI properties?

local hudFrame = script.Parent:WaitForChild("HUDFrame")
local hudText = hudFrame:WaitForChild("Text")

while wait() do
    hudText.Text = "Welcome to Laser Warfare Tycoon"
    wait(5)
    for i = 0, 1, 0.2 do
        hudText.TextTransparency = i
    end

    hudText.Text = "Created by NinjoOnline" 
    for i = 1, 0, -0.2 do
        hudText.TextTransparency = i
    end
    wait(5)
end

This all works, no errors. But what I want it to do is say one word, then make the text fade out, then fade back in with a different word. All this does it change the word, it dosen't change the texts transparency.