any tips and tricks for how to take screens? Commands? Free cam?
If you have a decent PC, run the game at 3840x2160 (4k) and set FRAPS to take a screenshot every second. Set it to PNG.
When you're done playing for a while, load up faststone image viewer and you can pick screenshots you like. You can also crop them. I set crop to 16:9 ratio and focus on part of the screenshot I find more interesting and try to keep it at least 1920x1080 pixels. Then when I've gotten that cropped I save it as a JPEG and don't compress it too much but try to keep it under 2MB.
If your cropped screenshot is over 1920x1080, just resize it using Lancoz or something.