I know cs_isku was a popular map in CSS at UKCS so i think on CSGO, it could be also. I recently released my first map for CSGO, which was cs_isku. Just for practicing and it's now available at Steam Workshop. http://steamcommunity.com/sharedfiles/f ... =198146855
However, if you run it on UKCS, please use the workshop version, because the map is named cs_isku and not yet completed. If i release an update, there will be incompatibility issues for the people who have older version if they downloaded it from server directly . So that's why workshop is better idea because everyone, including server and player always have the latest version.