I am not so sure if fps and blackjack mix too well. I sort of just picked up cards from time to time and shot at npcs while waiting. Is there even a point in killing them? They don't appear to do any damage and don't give any points. Plus you only win by winning the blackjack game, which heavily depends on our lord RNGesus. I need some more explanation regarding the premise!
The only thing I really hated was the death sound. Please remove the microphone from your mouth. You're supposed to speak into it not eat it!