Character mistake: Lewis Dinkum tells Deputy Mike Figuerola it's only a .50 cal round that hit him in the shoulder. The rifle he was shot with was a Blaser R93 LRS2 which fires a 338 Lapua round. A .50 pretty much would have torn him in half.
Continuity mistake: Just after Cortez got rid of the SWAT vehicles there is a shot from the back of the car driving away from the carnage. The white licence plate with "ZR1" on it (shown earlier) is now missing.