Battalions is a single player "indie"open world First Person Tactical Shooting Game for PC. The Game offers a vast Open World Gameplay (map based), Weapon Customization, Complex Player Class selection system leads a different game play or style of game play. The Game is being developed under Unity Game Engine. The development process is a little slow since less number manpower involved. Battalions will be available early 2020.

https://davidjone12.itch.io/battalions-tdw

The game looks nice, may I ask what game engine have you been using ?