What is MOD, MK and GR?

Each rifle, helmet, and drone have MOD and MK upgrade counters. 

All rifles have an additional GR counter. It rises after the collection of a complete set of avatars. You can see your avatar collections in the player profile settings. 

• To find and view your collections, just tap your profile name, click the pen next to your username and then the avatar window.

Each set collected increases the GR counter on all rifles per unit. Increasing the counter gives a +1 bonus to the received rank points for:

• number of rank points for the kill;
• number of rank points for the quick kill;
• number of rank points for killing with the first shot;
• number of rank points for headshots;
• a number of rank points for each kill in combination.