I recently made a new account and instant realised that if you have not fixed 50% of the settings you are at a HUGE disadvantage.
-Sniper mode changes
-Sniper mode graphics changes
-Multiple interface changes
-Multiple mini map changes
-Graphic performance settings
-Graphic settings to show ‘non historical’ 3D skins
-key binds (like setting repair as 5 so you press 5 twice to repair tracks)
mouse button binds
Those are what I remember but there’s a lot more that can really make or break your game.