That's not what it means by doing rotation.
They were CALLED up to another location. This means their rotating assignments AT the FOB. You're literally trying to twist the story.
There's no bullshit, you're trying to twist the narrative of the story because you don't want to admit that you're wrong.
Manny: We've been called up
Manny: Isaac wants us at the front.
Manny later asks Mel what she was called up for and she answers with, "It's just the usual rotation, don't worry."
You can't find any dialog where it says they were going to patrol an area while traveling. They were only asked to go directly to the FOB and that's it.
So this right here...
Is BS. They only carried weapons for protection, something that's not uncommon. They weren't asked to get out and scout the area, they were only traveling to the FOB.
I don't know why people try this hard to find hoes in a story when it goes against all logic. If you can't find dialog to as evidence to show they were asked to patrol the area while traveling, then don't even bother debating this topic any further.