in games where there is not a strong modding presence.
i disagree insanely with this. Because somehow blowguns are destined to blow your mouth out? Anyone who is any amount of intelligent pulls a blowgun out of a mouth instinctively when people charge at you.
I've used a blowgun in my loadout since I started playing in 2009 and it's insanely helpful. Strapped to the top of a primary at 3 or 3.5 ft you can easily and accurately hit a zombie at 40-50 feet away. You have a bunch of zombies grouping up for a charge? You and your squad all with blowguns take shots at the zombies to instantly thin them out. They line up farther away? that's fine too! they're more exhausted after each charge due to the increased distance, PLUS you can still thin them out as they come running at you. Their cohesive charge will be less effective the larger the distance they have to run.
People dont respect blowgun distances enough and I've been to invitationals where I just sit and stun zombies who come within 50 feet of me. We literally changed the meta at a few schools because they see how effective it is. Also spray and pray is NOT what's encouraged. Your blaster is accurate to about 15-20 feet for a center of mass body shot which is all you need to stun a zombie. The key to staying alive and being a good human is to keep moving and not stand still as they are running at you. You have to kite them as much as possible.