By all means prepare all you would need and others need. However that doesn't mean you are safe. Noone is ever safe . If your not prepared to see and endure some of the worst shit mankind and demons have to offer you are not helped by any supplies . Everything is intent . Everything is mental and spiritual when it comes down to it . Of course having decent chow and plenty of rounds does help when combined with mental and spiritual toughness and a decent skillset .