guys alot of you are still confused and asking so i will say it
"firmware included" means that when you flash the whole rom zip, it will apply the included firmware
if you (for example) are currently on r vendor and want to flash an s vendor rom, dont be fooled by "firmware included"
only flashing recovery will not install the correct fw. you need to flash s firmware first, then flash recovery and reboot to the new recovery to install rom.