It works. You need to edit the "pfsense-teamspeak-install_amd64.sh" and "teamspeak3-server.sh" script and change all instances of
That single "-" is what's causing the install issue. It extracts the archive to a folder named "teamspeak3-server_freebsd_amd64" but tries to move a folder named "teamspeak3-server_freebsd-amd64" to that location and obviously that doesn't exist.
Funny thing is it's not the scripts fault cause it's not telling it what to extract it to. Teamspeak changed the folder structure that it extracts. So looks like someone decided not to follow precedent and errors like this happen.