I tried it !
Everything is much better than the last time I tried

Fullscreen is a big plus, in addition to the background soundtrack it helps a lot being in the mood imho.
Getting rid of swing makes the overall look of the menus really better.
I had to switch to the default controls ( arrows ), because I have a french keyboard

Maybe it could be a good idea to detect the keyboard layout and adapt the key mapping in consequence ( maybe based on the default java locale ). Playing with the arrows was not very convenient as I'm right handed

... but it's still a good point compared to a lot of games I try here that have only WSAD and that are just unplayable with a french keyboard.
For the game itself I was able to reach level 2 so I'm quite happy

I still have to understand better the camouflage thing but anyway ..
Something else, it would be great to be able to consult the options during the game in order to have a look at the keyboard bindings. I had to try all the keys to activate the teleporter

Good work !