The recently released Call of Duty Warzone: Mobile supports cross-progression, meaning you can transfer certain items and progress from games like Warzone and Modern Warfare 3 to the mobile version. This is very convenient and useful because you won't need to unlock weapons, level up your account, or battle pass again. Regardless of whether you've played on a PC or console before, you can easily transfer your progress to your phone. However, not many players know how to do this, so here's how to link accounts for cross-progression in Warzone Mobile.