seems i cannot fully understand {/,/usr/local/}/etc/rc.d/*

[Wojciech Puchar]

i have samba server and few virtualbox sessions using vboxnet which is 
started by /usr/local/etc/rc.d/vboxheadless

i want samba to be started AFTER vboxheadless as the latter configures 
vboxnet0 automatically when started, and samba do bind to vboxnet0.

so i appended vboxheadless to REQUIRE: line in /usr/local/etc/rc.d/samba
because vboxheadless is a word after PROVIDE: in 
/usr/local/etc/rc.d/vboxheadless script

yet - samba still is started before vboxheadless.

what i am missing?