When fighting in the battle arena you will come upon matches where you weapon will auto switch after a few shots. To avoid this follow these steps. Start firing of shots till you get the hurricane. When it is out simply hold the fire button and don't let go or do a clank double jump and you will continue to fire the hurricane even though the weapon in you selector block will say something else. I find this easiest to do if you switch to lock-strafe-mode and then hold down R1 (fire).