SOCOM easter egg
In the "The Only Easy Day Was..... Yesterday" mission, when on the oil rig, you will see a TF-141 person named Jester holding an scoped M14 EBR. This is a clear reference to the original SOCOM where one of the missions was to re-capture an oil rig held by terrorist who planned to blow it up. Jester was the squad's Marksmen in SOCOM, hence TF-141's Jester having a rifle.