They host "Let's Play" video series on their website. For example, they have a walkthrough series for The Walking Dead Season 2 - Episode 5 .
If your file is a game walkthrough from this source, it would be a step-by-step instructional video on how to complete that specific game episode. 4. Local Rap or Cultural Movements OGZ E05.mp4
"OGZ" is a group in the NYC Bronx drill scene. "E05" could refer to an episode of a documentary or a music video series covering the OY and OGZ fallout . They host "Let's Play" video series on their website