My first guess is there are too many option from the get go, CS is good example to follow on how to introduce gameplay. I think a mini cutscene to introduce the setting and the game objective would be a nice add.
- The monochrome ui is hard to read. I fear you will have to compromise and some colour.
- You need a way to move across the map because it keep cutting the ui for me.Hope you will succeed, this one the few interesting game of this DD.