When it comes to technology, there wont be lasers and light sabers, you can expect slightly more advanced technology as to what we have now, but its better suited to fit their environment such as the WP Gear. 

when I listed nations I meant you would be controlling individuals within the three nations, the individual you control can have varying levels of influence over your nations government. 

The overall plotline is The Order trying to strip the core of its metal to gain power and rule the other nations, The Order would be playing the antagonist in this story, though in their eyes they're the protagonist. you can make up to two characters in this RP, one in any two nations. Down the line I plan for the characters of different nations to cross paths.

The idea of Hydroterra is one I'd like to use for other stories, I was even thinking of a fun sport series involving WP Gear.