Same Issue 4 Years Ago

[+f0r3v3r+]

Yeah - root WILL NOT help you, if anything it could open the door for vulnerabilities.

And you will need to make sure the script has permission to execute, but never should it need to be run as a privileged user...

Also - instead of trying to use the script generated with the wizard, do like stef said and have a look at servercmdline.txt (in the AssaultCube_v1.2.0.2/config/ directory) - It has all of the options there, ready to edit or append.

As for the Documentation - every one of the options in servercmdline.txt is detailed here:
http://assault.cubers.net/docs/commandline.html

Look at the section titled "Arguments for the AssaultCube server"

Also note that you are starting the shell scripts improperly anyway...

Spoiler

This:

[SELECT ALL] Code:

sudo /home/ryard/AssaultCube_v1.2.0.2/server_wizard.sh

should look more like this:

[SELECT ALL] Code:

./home/ryard/AssaultCube_v1.2.0.2/server_wizard.sh

Or even like this possibly:

[SELECT ALL] Code:

bash /home/ryard/AssaultCube_v1.2.0.2/server_wizard.sh

But, seriously, that wizard is like stef said - crap. Don't do it...