Arenas Gun Standoff -- Locker Room Video

The Xmas Eve gun standoff between Gilbert Arenas and teammate Javaris Crittenton may have been caught on tape by surveillance cameras, law enforcement sources tell TMZ.

We're told the Washington Wizards have told D.C. cops they have locker room surveillance video but are having trouble downloading it. The Geek Squad -- aka computer-savvy detectives -- are going to the Wizards organization today to help.

And get this -- a source connected with the investigation tells TMZ the Wizards have been "over cooperative" with cops -- as the source says, "almost as if they want Arenas to go down."

The source says "there is a better than 50/50 chance the U.S. Attorney will issue a felony arrest warrant against Arenas."

As for what caused the confrontation that allegedly triggered a gun standoff -- law enforcement tells TMZ it was all over a card game known as Bourré.

The NBA suspended Arenas indefinitely yesterday and, as we first reported, Arenas didn't have a license for the guns.