Trying to run a sound from SoundScape via chat based on the player's rank in a group?

I'm working on a group raid game, and I want a certain rank and up in the group to be able to say :raidofficial and make the RaidOfficial sound play. Note that this works perfectly fine in studio, but not when you actually play the game. Alternatively, if anyone could assist in figuring out how to add a command like this to Basic Admin, that would be preferred as I tried that but couldn't. Feel free to PM me.

Anyway, here's the script.

function onChatted(msg, recipient, speaker) 
 

local source = string.lower(speaker.Name) 
msg = string.lower(msg) 
local rank=speaker:GetRankInGroup(1256948) -- group
if rank >= 8 then -- rank 8 and higher
	if (msg == ":raidofficial") then -- Sound I want to play
game.Soundscape.RaidOfficial:Play()
wait(58.174) -- Length of sound
game.Soundscape.RaidOfficial:Stop() 
end
end 

end 

function onPlayerEntered(newPlayer) 
newPlayer.Chatted:connect(function(msg, recipient) onChatted(msg, recipient, newPlayer) end) 
end 

game.Players.ChildAdded:connect(onPlayerEntered)