Battlefield Friends Reference:

Learn about the Battlefield Friends series and where its characters appear in Battlefield 4's Tashgar mission.

Battlefield Friends is a series created by Machinima that follows the antics of four Battlefield players. In the campaign mission Tashgar, after being let into the base by friendlies (friendly non-player characters) up an alleyway, you will encounter groups of soldiers. If you stay in front of these soldiers long enough, they will begin to quote the characters from the Battlefield Friends series.