http://www.pcgamer.com/call-of-duty-wwii-beta-will-be-free-for-everyone-later-this-month/

Call of Duty: WWII will get a PC beta on September 29, and the good news is you won't have to preorder to get access – anyone can jump aboard. It'll run for a whole weekend before wrapping up on October 2, and it'll take place on Steam.

According to Sledgehammer Games in their announcement, the beta is designed to stress test "core gameplay systems and online backend infrastructure at scale". It's also designed to give PC users a hands-on period with the game while the studio goes about its business fine tuning and optimising.