After the death of the remaining commanding structure in the convoy, the soldiers finally realized that something was terribly wrong. Some of them even heard the sound of the mirror shattering followed by the sound of a coconut busting, which attracted their attention and forced them to take a look at what was really going on.
But that was not all, some of them had been having a conversation with their comrades, just before the person they were conversing with had their heads suddenly explode in front of them, spattering all of their brain matter over their faces, giving them a horrific experience and a very expensive PTSD to recover from.