Where can Warzone 2 DMZ players find the access card of Building 21 in Season 2

sportskeeda.com:

Building 21 is a prominent location on the DMZ map that was introduced to Call of Duty: Warzone 2 with the Season 1 Reloaded update. This particular location is unique in the sense that it isn't always accessible, considering that there's a limited time window in which players will be able to infiltrate the building. Unfortunately, that's not all. Entry to this heavily guarded structure requires an access card, which must be used in this time frame to gain access into Building 21.

In the game's first season, these cards spawned at various locations on the Al Mazrah map, but were fairly difficult to find. Some of the most common spots where players looked for them included Orange Boxes, Supply Drops, or from the crates found at the crash site of the Commander's Helicopter.

Unfortunately, these areas weren't even guaranteed to contain access cards. Thankfully, with the Season 2 update that will be dropped soon, the developers have laid out a few locations where one can find these cards. Interestingly, these locations are available in both Al Mazrah and the newly featured map of Ashika Island.

As mentioned earlier, locating an access card for Building 21 isn't an easy task. Although Warzone 2 players in Season 1 might have come across one by chance, the developers in Season 2 have mentioned a few sure-shot locations where one can find them. The locations are as follows:

Clearly, these locations haven't deviated much from the popular locations of Season 1 and players can expect to find them in Orange Boxes and the crash site of the Commander's Helicopter. In addition, the developers stated that access cards might be available in Buy Stations as well. It might be worthwhile to stop at every Buy Station in the DMZ mode to obtain