Character mistake: At the start of the episode when Clay is done brushing his teeth and standing in front of the mirror without a shirt, he has no tattoos. He has been seen several times with tattoos on his arms that are not even covered by a normal T-shirt. (00:05:02 - 00:05:23)
The Cost of Doing Business - S1-E22
Character mistake: After they kill their target the dead body above the target moves and looks up and then back down. (00:17:43)
Character mistake: The team is using names of cities in Puerto Rico to show progress on their mission. Condado and Arecibo are misspelled. (00:04:00)
Never Out of the Fight - S2-E22
Character mistake: When Jason is having his toast in the bar, he begins listing up the amount of decorations there are in the room, starting with saying there are three Silver Star medals in the room. Bravo Team alone has eight Silver Star medals. The only operators from Bravo who do not have the Silver Star medal are Blackburn and Full Metal. Full Metal was a real SEAL before going into acting, and earned a Navy Cross that he also wears in the show on his dress uniform. (00:36:36 - 00:37:12)
Character mistake: Sonny and a Turkmen soldier are having a competition shootout, and they're both using CZ75 9mm pistols. These firearms are very high end and are made in Czechoslovakia. Sonny says "I have this little Russian pea-shooter." The place of manufacture is stamped on the frame and its Czechoslovakia. (00:20:00 - 00:20:30)
Character mistake: Lindell is referred to as Captain Lindell; however, on his office wall, he has a Meritorious Service Medal Award that references Captain Greyson Lindell, USMC. The fact Lindell is a Marine, he should be recognized as a Colonel and be wearing a USMC uniform, not a U.S. Navy uniform. (00:26:43)
Character mistake: During the CO's meeting, the Captain made a mistake by addressing Commander Blackburn as "Lieutenant Blackburn." Even if he was demoted to Lieutenant Cmdr, you still suppose to address that rank as Commander or Lieutenant Commander. (00:04:44)
Answer: They should be wearing balaclavas. They do such operations usually on foreign soil.