you need to click on veqryn’s link to download global
then you need to open up whatever triple a you are using
open up maps and move the download global game in there
then back up and restart triple a
if that doesn’t work then create a folder “World War II Global”
unzip global and move everything into your new folder which should be in maps and restart everything
also I don’t think global future 3 works on 1521 just 1.6
but it looks like you want 2.9 put in 1521