OK, Thursday might work for me. I'm not sure if I'm going out that night or not. I'll know tomorrow.
And yes, 9pm EST is 6pm PST. I use
this website to make time charts.
All final game times will be posted in
this thread. along with all other necessary info, so subscribe to it! Though usually someone will post here too.
First make a backup of your entire maps folder and set it to "read-only".
To use modded maps just move them into the maps folder (which is located inside the Halo.app, right click Halo and select "Show package contents", the maps folder is in "Contents>Resources>GameData").