Great job!
Everything was smooth and bug-free until the reactor - I’d suggest limiting how many enemies the final boss can spawn in the reactor, since dying repeatedly makes their numbers keep rising (and we don't have that much ammo to counter it).
I also figured out how to beat the boss, but using the “map reactor” broke the game (I fell out of the map), and I couldn’t return to the bridge - I’ll try another playthrough. -- Edit: finished the game :)
Besides that, it’s a fantastic pick for System Shock fans! I love the style, the lore, and the logs really add to the atmosphere, and the “rad visor” is such a brilliant idea.