How could I replicate this feature?

When I tried CloneTrooper1019's Murder game a while ago, one thing that was personally my favorite feature was when if you collect 5(?) gems(?) you would get a gun.

That was my favorite feature because it makes teaming and gun guarding pointless and the game more fun.

Now, I'm making a murder game using the Mad Bloxxer Template (from RBLX University), (since I only know the basics of scripting) and I really want to include that feature in the game.

But, as you know, I'm a noob at scripting, so that's why I need help on how it works. (Please explain step by step) Thank you for reading.

When I posted this at RBLX forums, someone replied with this, which I really didn't understand most of it.

game.Workspace.Gem.Touched:connect(function(hit)
	if hit.Parent.ClassName == Character then else return end; -- checks if player if not returns nil
	local name = hit.Parent.Name;
	Players[name].GemValue = Players[name].GemValue + 1;
end)

-- in gem value
script.Parent.Changed:connect(function()
	if script.Parent.Value == 5 then
		script.Parent.Value = 0;
		award_gun();
	end
end)

Here is an explanation of the script. I have no clue how your game is set up so this is all I can do for you right now.

game.Workspace.Gem.Touched:connect(function(hit) -- This defines the function that is played out when a gem is touched. The function is the code below until end)
    if hit.Parent.ClassName == Character then else return end; -- this checks if it was a player that touched the gem
    local name = hit.Parent.Name; -- this is a variable everywhere that name is used the script interprets it as hit.Parent.Name which is the name of the player that touched it.
    Players[name].GemValue = Players[name].GemValue + 1; -- Takes the player that touched it and adds to the gem value.
end)

-- in gem value
script.Parent.Changed:connect(function() -- another function
    if script.Parent.Value == 5 then -- if the Gem Value is 5
        script.Parent.Value = 0; -- then make the gem value 0
        award_gun(); -- and give the player a gun
    end
end)

I have no idea if this script is working because again I don't know how your game is currently set up at all so that is the most I can do.