Weapon upgrades are tied to an in-game currency system earned through mission success, bonus objectives, and daily challenges. Importantly, version 2.7.10 rebalances the upgrade costs, making it feasible for free-to-play players to max out at least two helicopters within 40 hours of gameplay.
is a mid-lifecycle update for the popular aerial action game by JOYCITY Corp. gunship battle helicopter 3d 2.7.10
: Bug fixes and optimization for newer Android OS versions. Helicopter 3D 2.7.10 APK for Android - GUNSHIP BATTLE Weapon upgrades are tied to an in-game currency