From my undestanding you cannot use the old-fashion commands(like if(strcmp(cmd, "/makeadmin", true) == 0)) while using zcmd , so use zcmd for all your commands
no. I only have this command In my GM. And it doesn't work. It shows no errors and no warrnings, but when that command is in my gamemode, when I start my home server, my login / register doesn't work :S