Some of us have our own weapon ganis for Zone. If you want to edit them to suit your own desires, here's the syntax for locating the ones you want:
zone2_state_wep
So if you wanted to change the kv9 firing action:
zone2_fire_kv9
Be wary when editing, if you screw up a gani it's permenently screwed unless you get the originals off a friend, so MAKE SURE YOU MAKE BACKUPS BEFORE DOING THIS.