Yep, I see this has been a learning experience for me as well. Check my post again (edited it like 4 times now!). The above loads up and in fact I have your server running right now. I am just going to join it and see if I can be a hero right off the bat.
Those settings I was not sure about, so perhaps it will just be the default hero setting, since it wouldn't accept any of the values I gave it. But /noherounlock will either mean you don't have to unlock heroes, or there are NO heroes whatsoever (hopefully the former rather than the later). It may be though that they made it so you can't be a hero right off the bat unless you're playing the "Celebrity Deathmatch" mode, that isn't available in the beta... we'll see!