Audio problem: In one of the scenes right before the solider get killed by the lasers and the alarm is sounding, the commander says to everyone "Hold your positions, everyone stay calm" but his lips aren't moving. (00:31:20)
Audio problem: When Matt is trying to reach the keys while kicking the zombie it cuts to Chad running against Spence who's standing by the locked door. When Chad is running you can see Rain in the background firing shots but you can't hear the shots. (00:42:15)
Audio problem: Near the middle. When Matt is searching through the office room where his sister Lisa worked, you can hear his shoes clicking as if he is on a hard surface floor, but the floor is covered in carpet throughout the office. (00:49:00)
Audio problem: When Spence is killed by the Licker, Matt sees this on the screen and asks, "What the f**k was that?" You can see that his jaw isn't moving. (01:17:25)