Sometimes you can get very disoriented going up long flights of stairs. The graphics are not the best, at least not by today's standards. The enemies would mostly prefer to commit suicide by holding a gun and being in view of your teammates. And its way to easy to kill enemies. Five or six shots will take care of most enemies, and compsred to that your almost invincible.
Overall great game, gameplay, mostly good AI and excellent array of weapons to dispatch those offenders with.