Giving players the ability to craft their very own vehicle in game with different parts and modules such a Trailer Truck, adding guns to them for example crafting a Truck for 3 people and then adding an M2 turret module.
Ther could be for example:
Introduction of dynamic ocean events just like CARGO or HELI like a military convoy at sea where you need to have at least 1 medium boat with storage and guns so you could fight NPCs and players at sea
CARS AND HEAVY VEHICLES
With the introduction of a new type of fuel (Advanced Low Grade Fuel, Petroleum), Larger crafted Refineries, a large refinery monument just like the Giant Excavator Pit, an event of armored fuel transport in 3 stages, Air transport arriving to the island/Large Refinery Monument, then a transport carrying a refined fuel from there, across the island with a convoy with NPCs on them or in a ARMORED TRAIN EVENT all around the map!! towards a Medium fuel Cargo ship that you could sink and gather the fuel and gun parts.
Addition of new modules for larger vehicles
VARIANTS FOR SCRAPPY AND MINICOPTER
Introducing turrets for the scrap heli, and a larger helicopter
All this with the introduction of new attatchments, custom crafted weapons, dynamic monuments. I mean this would be amazing and even could be divided in 3 large updates.