Irvine and Zell are back to talking about weapons while introducing themselves to the new guy.
Prompto: fun character in the anime thing, silly comic relief guy in the game…
…also totally dumb in battle. YOU HAVE GUN, FIGHT AT LONG RANGE.
This dude is running around like an idiot in a crowd of monsters with a pistol while everyone else has swords and lances and whatever. Your weapon has a very specific tactical advantage, make use of it!