Default will be comconsole, you can change it to monitor if you really want to ;-)alter
-node/boot/loader.conf
-node/boot/boot.config

VIDCONSOLE
-node/boot/loader.conf
console="vidconsole"
-node/boot/boot.config
-D

COMCONSOLE
-node/boot/loader.conf
console="comconsole"
-node/boot/boot.config
-Dh

COMCONSOLE if no VIDCONSOLE present
-node/boot/loader.conf
console="comconsole,vidconsole"
-node/boot/boot.config
-D