This trailer offers a look at co-op gameplay from Call of Duty: Black Ops III, captured on a PlayStation 4, since it was shown in the Sony booth at E3. Here's word from Activision on what this shows us:

Take a deep dive into the Call of Duty: Black Ops III cooperative campaign with the Cyber Core tutorial and an extended cut from "Ramses Station" as seen exclusively at the Sony Playstation E3 booth. Call of Duty: Black Ops III is a dark, gritty future where a new breed of Black Ops soldier emerges and the lines are blurred between our own humanity and the cutting-edge military technology that define the future of combat.

Designed for four-player online co-op or solo play, players will encounter epic cinematic moments and open-area gameplay, allowing players to approach the game with a different strategy each time they play. And now your campaign character is completely customizable: from weapons and loadouts, to abilities and outfits, all with full progression systems and a personalized armory to show off accomplishments. With these and many more exciting new features, Call of Duty: Black Ops III aims to deliver a constantly-evolving campaign experience.