gunshot sound effect is #3 from https://freesound.org/people/Xenonn/packs/8014/
gun cocking sound effect from https://freesound.org/people/BradHT/sounds/445380/
bomb beeps modified from https://freesound.org/people/kwahmah_02/sounds/246332/
bomb explosion from https://freesound.org/people/cydon/sounds/268557/
bullet flesh impact from https://freesound.org/people/nebulasnails/sounds/495118/
stealth kill sound effect modified/constructed from https://freesound.org/people/ultradust/sounds/167516/ & https://freesound.org/people/colinpoh/sounds/146346/