Call of Duty Mobile launched yesterday, but like a lot of games these days, it didn't launch without problems. Many players encounter an error code 3005, which tells them that the game "failed to create a match".
Call of Duty Mobile - Failed to create match 3005 - Explained
This error appears to be due to a failure in the connection to the Matching Server. Unfortunately, there is nothing you can do on your own if the problem is not on your end.
The Call of Duty Mobile support page has the following to say about connection issues:
Call of Duty: Mobile requires a network connection to play. If you're having trouble connecting to a game, or if you experience a lag while playing, check your network connection. A strong Wi-Fi connection is recommended for playing Call of Duty: Mobile. If you're having trouble with a Wi-Fi connection, try restarting the wireless router if you have access to it.
Please note: Call of Duty: Mobile is currently available to players in Canada, Australia, and Peru only, and is not accessible through a VPN. If you try to play while connected to a VPN, please connect to a public or shared network in Canada, Australia or Peru and relaunch the game.
Restarting your device may also refresh your connection and resolve network connection issues.
Android
- Press and hold the power button for a few seconds.
- Tap Switch off ou To restart on your screen. If these options are not available, press and hold the power button until your device restarts.
iOS
- Press and hold the power button until the slide to turn off The button appears.
- Slide the button to turn off your device.
- After the device is turned off, press and hold the power button to turn on your device.
So while the above solutions might fix the problem if the connection issue is on your end, if the issue is from the end of Activision, you will just have to wait for them to fix the issue.
Some people have reported their success by repeatedly trying to start a game, but it will depend on your patience.