Many fixes to Arcade and COOP modes.
Updated game engine.
Fixed minigun turret logic.
Fixed AKM + under-barrel unlock in COOP.
Added full COOP customization feature for arcade partners.

PLEASE NOTE:

After update loading any level FIRST time may cause delay, please wait to allow game to cache and compile some shaders which will allow to run it smoothly.

HOTFIX UPDATE (3.7.6)

Fixed "Filled Canister cannot picked up".
Game Engine update.
Arcade and COOP mode changes.