I think an armed citizen should be able to perform to the FBI Qual standard, doing so could be beneficial if one ever finds themselves explaining to a jury of their peers why they fired a weapon in self-defense. But the standard seems like it is missing some important fundamentals that all people who have a weapon for self-defense should know.
I took the posted standards from the FBI qualification and added some important skills while keeping the same time and distance standards, and the exact same round count.
The FBI uses the QIT-99 target, but since I don’t have any of those I propose using the more common IDPA or USPSA cardboard silhouette.
Scoring: Shooters receive 1 point for every round that lands inside the -0, or -1 zones of an IDPA target or inside the A, B, or C zones of a USPSA target. Shots that break the line count. The course of fire is 60 rounds and shooters must shoot 80% (48 hits) or better to qualify. 54 hits scores 90%.
Equipment: Shooter will need their CCW handgun and one spare magazine concealed on their person, and at least 60 rounds of ammunition (actual carry ammo is preferred). Scorekeeper will need a shot timer, or a suitable shot timer app on their mobile device. One cardboard IDPA or IPSC target for each shooter/each iteration. One barricade/simulated barricade. Range should extend to at least 25 yards. Personal Protective Equipment (eye pro, ear pro, etc.) for all participants.
For all stages, the shooter must start hands relaxed at their side and draw from concealment.
To adapt this COF for a defensive carbine, stages 1-3 should be shot at 10 yards, 4-5 at 15 yards, and 6-8 at 25 yards. Weapon should be slung, on safe, and carried at relaxed ready.