M9

The M9 is the basic gun you will get when you first spawn. It does the least damage in the game. It's not great but is good for long range.

Strategies

For fending off normal zombies it's pretty effective. But don't provoke players, as any gun is stronger than yours. If you're really convinced of your PVP skills, you can still try, as in this game not only brute force but also strategy counts. If you are forced into PVP, try to keep distance and use the good sight it has. If you're able to, try to get better guns before your first Blood Moon. The reason for this is that the M9 is pretty useless against foes faster than yourself.