My BIQ FTX was four days. The first day/night was spent in a defensive position, where you are woken up every hour or so for a stand-to. The second day, we moved to a patrol hide. We were there for three days, two nights. During the day, we relaxed and slept. At night, we conducted recce and fighting patrols. Occasionally, the hide was attacked by staff or returning patrols (who acted as enemy force).