Welcome to GunZ map making, we arn't allowed to use the same tools maiet did, so we use GTK and Xml, and if you knew anything about GTK you'd understand its a bitch to use. Also, the only floating wall was in my first map, after that they have been closed off perfectly so your criticism means nothing to me.
Also, besides all the maps that clearly say "By Mike" the only one that doesnt have that tag is pillars which; here is a gtk screenshot. Also, here is RoF.
Now is there anything else I could offer you fine ******s?