Character mistake: The woman with the AK-47 doesn't have the covers on the red dot optic open. In other words, she can't see her target.
Visible crew/equipment: Waller is telling "Task Force X" about the additional mission they need to pursue, saving Rick Flag. Watch the shot when Bloodsport repeats "Rick Flag?" and Waller replies "I know." The team is going through dense, uninhabited tropical jungle, but in the trees there are people in T-shirts just standing around looking at them. (00:31:50)
Continuity mistake: When Booth first arrives in Bali on the boat he's wearing a brightly patterned tropical shirt, and between shots the shirt's pattern completely changes, though it's the same style of shirt, then it changes back again. (00:13:40)
Continuity mistake: During the first face-off between Jakob and Dominic, Letty's bike lies on the ground facing opposite directions depending on the camera angle. (00:21:40)
Continuity mistake: When Jang and Tiger are talking at the poker game, Jang points a gun at Tiger and is the gun seen pressing against Tiger's forehead. In the next shot, the gun is suddenly a few inches away from Tiger's forehead. (00:18:40)
Continuity mistake: After Silas is killed, in the wide shot Cyborg is standing mostly upright in front of Flash. Cut to a closer shot and he's bent over. (02:51:45)
Continuity mistake: After the intro, the scene dissolves into a map that resembles the branches that trapped Aguirre. A shot later the design of the map is different.
Revealing mistake: When you see Hutch walking backwards through a doorway firing his gun, you can see an actor in the background in the entrance looking directly at the camera. As Hutch passes past him, he puts his head against a wall and plays dead again. (01:18:32)