As you may know you can take screenshots with F1, please share your battles here.
You can find your screenshots at: "C:\Users\USERNAME\AppData\Roaming\GOBS\Screenshots"
If you would like to share your map then save it through the build menu.
Head to "C:\Users\USERNAME\AppData\Roaming\GOBS\UserMaps" and there you will find your maps.
Just upload them and share the link here