Nah, enemies pull everything from their asses, like Boku no Pico.Hokage should go and fetch a rifle from the jungle. If sheets grow on trees, guns do as well. That's how Byakuya got his pistol, I imagine.
Well, why use precious ammo on the tiger, when he could use his expendable classmates?Now the question is... why did he not use the gun on the tiger?
Imo I think his decision of hiding and running is a good choice as how are you gonna kill or defeat a group of thugs who are completely unhinged and won't stop at anything(even kill their own teacher and classmates) and people willing to do their bidding inorder to survive with just 9 people. You are completely and utterly out numbered.I'm self-aware enough to know that most men overestimate how useful they are in these situations, but I am at least confident that I would have long ago put my mind to killing those psychopaths on the other side of the island. You don't gotta kill all of them, just the few at the top of the hierarchy that are pushing their crazy shit onto everyone.