Here are the main features of the game based on the latest available, similar app version data:
Note that downloading .zip files from unofficial sources can be risky; it is recommended to get the game through official stores like Google Play or Steam. 911 Operator – Apps on Google Play Plik: 911.Operator.v1.34.18.zip ...
The game requires an internet connection to download maps, but offers offline play afterwards. Here are the main features of the game