Activision has rolled out a new campaign for Call of Duty: Modern Warfare and the battle royale game Warzone where you can get free stuff for simply watching Twitch streams.

Now through August 19, everyone who watches a streamer participating in the event can get bonuses like double weapon XP, special stickers, and calling cards. The most prized item seems to be the "Blast Check" weapon charm, which requires you to watch four hours' worth of Modern Warfare/Warzone to unlock. Check out the graphic below to learn more.

How To Access The Free Items

To be eligible to unlock the content, you must have a Call of Duty account--get one here. Next, you need to link your account to your Twitch account, which you can do here.