How to get past the locked doors in the Warzone stadium

What is the CoD: Warzone stadium access code? That’s a big question, but you’ve got to get inside some locked doors first. Ever since Infinity Ward’s battle royale mode launched, the huge, once-closed arena stood out like a sore thumb amid the rolling wastes of Verdansk. Now, as part of the launch of Call of Duty: Modern Warfare season 5, the mysterious ground has opened, triggering a storm of us exploring every inch of the stands.

And, as it turns out, the stadium offers some intriguing secrets. Naturally the space is full of loot, but we were soon mystified by a few locked doors with keycard slots next to them. The CoD community on Reddit quickly set to work, soon discovering that these doors function like the 11 Warzone bunkers spread around the rest of the map.  

source: gamezpot.com