Tl;dr in any case ignore some of my fellow peeps that just love creating drama andcausing an issue.
But as for advice a lot of the time in Gg admins like to play different maps and most players only like playing a select few. And a lot of the time you shouldn't have to change the map because most of the time atleast 1 or 2 will show up in a map vote and everyone will vote for them. Learn the maps and get to know some of the regulars and have fun with it. GG can be laid back or extremely serious so get to know the regulars to know who your dealing with forst before doing anything stupid. That's about it, just enjoy it.
P.S. just a heads up rapedoars and maynard come on from time to time drunk and they may seem like assholes some times, but just let it go unless you have a wanting for one of them to have fun banning you lol.