Screenshot coming soon.
The Baseball Bat is a common wooden melee weapon you find lying around. On its own it breaks fast, but it is the base for the Spiked Bat, Bat Axe and Superior Club. Keep one handy for crafting.
A plain bat is fine for a single Swarmer or a downed human. It is really a crafting base. Upgrade it once you have the recipe and parts.
The Spiked Bat is the first and cheapest step up. The Bat Axe hits harder at the same cost in parts. The Superior Club needs a small pipe instead.
Field Repairs lets you top up a crafted bat with scrap instead of losing it. Bats count toward Old Reliable once crafted, which needs 200 kills with crafted weapons.
2x4
The 2x4 is a plank of lumber you pick up off the ground and swing until it breaks. It is weak on its own, but crafting recipes turn it into the Spiked 2x4 and the 2x4 Axe. Treat it as raw material for something better.
Baseball Bat Axe
The Baseball Bat Axe is a crafted melee weapon: a wooden bat with a saw blade bolted on. The recipe sits in the bunker of the fourth Ambush Camp you clear. It hits much harder than a spiked bat for almost the same parts.
Boot Knife
The Boot Knife is Deacon's always-equipped blade, and it never breaks. It handles stealth kills and finishes grapples when your melee weapon is gone. Skills make its combos hit hard enough to rely on.
Fence Post
The Fence Post is a common wooden melee weapon you pull from the world. It is weak alone, but it can become the Spiked Fence Post or the Fence Post Axe. Use it as a crafting base when you have nails or a saw blade.