The game is not perfect with its occasional glitches, but it's a lot of fun to play and visually immersive. Some parts are really challenging to get through, but reading the bonus objectives on a mission like don't kill anyone or don't get spotted gives you a clue that you cannot successfully go in with "fangs blazing" and think that you will easily get through! Luckily, you can keep trying to figure it out. Thank the maker for checkpoints!