Add dirt bikes/motorcycles

Since the game already has vehicles, adding a dirt bike or light motorcycle would be a great addition. It would fill a different role focused more on agility and quick movement rather than durability or carrying multiple players.

It should be about the same speed as the four-wheeler but with better handling and tighter turning, making it better for flanking and quick escapes.

In VR, one hand could control the handlebars while the other is free for weapons for drive-by combat, and leaning could help with turning.

To balance it, it could have lower durability, be louder, and make aiming less accurate while moving fast.

This would add more variety to vehicles without changing the core system.