I only just started playing this too. I like the concept of the game and the dynamic aspects. However I cannot for the life of me work out how to use the safe (is it suppose to be a puzzle??) i've tried use keypad, use safe, touch keypad, tried just entering in the password after looking at the safe (which i got a hint from Agent you know who).
Also i noticed some of the commands like with the encounter options seems to work the first time if you type it out fully displayed and for follow up choices it will only accept keyword of that choice.
But i'm enjoying it so far and I like the writing style. I'm not far into the game as yet, but i've been killed by a sniper so far. Me thinks i know where from.