Azov Regiment surrenders. Why didn't they evacuate...did the General Staff have operational control of the unit?

After the clearance of booby traps along the passage leading out of Azovstal plant, numerous Ukrainian soldiers surrendered to Russian forces.

The plant will be taken over by Russian troops after the evacuation of all UA soldiers. pic.twitter.com/YjX5B4K8SL

— CaucasusWarReport (@Caucasuswar) May 17, 2022

Why did the Azov Regiment hold out instead of evacuating with other Ukrainian forces.  Did the General Staff actually have operational control of the unit or did they act independently.

Another thing is a bit mysterious too but no one is asking the question.  Why did the civilians remain behind when Ukrainian Army units withdrew?  That is either the boldest or craziest (both) decision I can imagine.

One thing seems apparent.

These bubbas are in for a rough ride.  I've read reports that members of this Regiment won't be eligible for prisoner exchanges.

Have we ever seen an entire regiment put on trial for war crimes?

UPDATE.

Rough ride indeed.  Azov is gonna need third party intervention if they're gonna see the light of day again.  Pains me to say it but this would be a prime move for China.  Little threat, tons of gain and could possibly lead to them brokering a cease fire of some sort.

Russia is moving to designate the Azov Regiment as a terrorist organization

The Russian Supreme Court will hear the case on May 26

— Samuel Ramani (@SamRamani2) May 17, 2022