Your gun will never be as strong as your opponents. For some guns in the game, they're over $50 usd to purchase the additional gun, and I'm certain there are going to be more that are worse. To upgrade anything after a low level, you have to win 20 games before you can upgrade bullets, that you can shoot the opponent in the face point blank 10 times and they still kill you with a single shot, even if your health is full. This game is created to make you purchase , on purpose or accidentally.