Ironman44, that's an outdated chart from an old version of the documentation. The current documentation says exactly what we have in our Knowledgebase article here: viewtopic.php?f=70&t=5905
. It does not list a requirement for vehicle respawn delay.
Unicornasaurus, just enter whatever settings you want and then click "Set hardcore". The page will fix up anything that needs to be adjusted to get you to show up as hardcore, per the documentation.
Pain, yes, servers can be run in unranked mode. This is an option on the "Easy setup" page. Running the server in unranked mode allows for a few more settings to be adjusted.