Weapons in pvp

Hey guys why some weapons in pvp have a 1 damage? Like the blowpipe,terragrim,etc
And about the weapons can you recommend me at least (1) weapon to use when on pvp?

Thanks!

DG pvp has modified damage and stuff, see here for information about that: DG PvP Overview

here for weapon modifications: https://pvpmanager.dark-gaming.com/

and here for a tier list by @enemy_gamer: Enemy Gamer's PvP Handbook: Updated Weapon Tier List - October 2024