At the end of the episode when the helicopter is taking off, Leo is shown sitting in the passenger seat but when the camera pans out the seat is empty. After they cut from Hood back to the helicopter, Leo is shown in the seat again.
After the battle at the base a dead soldier adjusts his hat and plays dead again.
As he was loading rounds into the magazines, Hood can be seen loading a fresh magazine into his gun and holstering it twice...the first time Gordon entered and after he re-entered.
The Colonels Marine Corps ring changes to Army. Clearly visible when his finger is blown off and laying on the ground.