Despite being in 'Real Time', the section at the end when Jack and Curtis infiltrate Wilshire Gas Company, the clock shows 9:56:23. When Jack sets the C4, the clock shows 9:57:42, supposedly taken place over a minute. The actual time for that scene was 2 minutes, 40 seconds
After Bierko shoots the manager of the gas company's friend, he puts his arm around him and says to one of his men "Take the canisters to the main distribution tank"; a camera's shadow can be see on the manager's white shirt.
When Jack interrogates Collette Stenger, he threatens to shoot her and racks the slide back on the gun. When shown from the side, the slide has not fully seated forward and has a double feed malfunction. In this manner, he would not have been able to fire a round unless he cleared the jam.