Activision today released a teaser trailer for Nemesis, the fourth and final expansion for Infinity Ward’s 2013 first-person shooter Call of Duty: Ghosts. The 15-second trailer is a wild montage of images for what appear to be score streaks.

You’ll also notice that at the very end, the “g” and the “s” in the word “Ghosts” come into focus last, which makes the word “host” flash on the screen for a brief moment. How or if this is tied to the Nemesis expansion for Call of Duty: Ghosts remains to be seen.

The Nemesis expansion follows previously released add-ons for Call of Duty: Ghosts, including Onslaught, Devastation, and Invasion. All four expansions are included with the $50 Call of Duty: Ghosts season pass or can be purchased separately for $15 each.

Activision has not announced a release date for Nemesis. When it does arrive, however, it will be exclusive to Xbox platforms for a period of 30 days per Activision’s longstanding arrangement with Microsoft.

The next Call of Duty game is November’s Call of Duty: Advanced Warfare, which developer Sledgehammer Games says is “not the same old Call of Duty.” Characters in Advanced Warfare can wear exoskeletons that grant players superabilities. We will get to see how these abilities, like increased dexterity and super-jumping, affect multiplayer when Activision takes the lid off the mode on August 11.