If you press the 'Pause' button while shooting, then wait several seconds before unpausing the game, your gun will be able to shoot endlessly until it reloads and be ready to shoot again.
Always keep an eye on your radar to locate the enemy. The radar is in the upper right corner of the screen and it will show you exactly where the shots are coming from and how close the enemy is from you. Using the radar will minimise your chances of running into open fire.
If you can afford the $0.99 cost get the 'Next' weapons which are better and more powerful and will make firefights easier. When in a firefight try to hang back instead of running straight in and taking the chance of getting gunned down but if your team mates have the goat in Sacred Goat mode then stick close to them and give up your own life to save it if need be. Remember to keep an eye on the ammo in your weapons and reload only when you are somewhere that is relatively safe.
Objective for Each Mode:
Listed below are the games four different modes and their objective.
Every man for himself. First player to 15 kills wins.
Work as a team. First team to reach 30 kills wins.
King of the Hill:
Hold the Hill. First team to 120 seconds wins.
Hold and protect the goat. First team to 90 seconds wins.