Speed across land and water in your own personal hovercraft. 2 versions, plus 2 more with the mod 'Laser Tanks'.
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
New ways to deal with enemies, be it attack or defense.
i have an idea for a long range missile hovercraft which would be able to launch 1/4 times as far as regular artillery and a hovercraft that can hover above shallow water