The Auto-Crossbow, called the Executioner in Far Cry 6, is a semi-automatic crossbow you carry as a special weapon. It returns from Far Cry 4 and looks like a stockless BZ19 with a helical magazine.
A crossbow suits quiet kills, since bolts make little noise. The semi-auto action lets you send follow-up bolts quickly if the first one misses.
The BZ19 shares its helical magazine design but is a full-size weapon with a stock. The Executioner is the compact version.
Auto-Turret
The Auto-Turret is a deployable gadget that you place and then leave to shoot enemies on its own. It is handy for guarding a flank, and FND Engineers use their own turrets against you.
Compound Bow
The Compound Bow is a silent bow for stealth kills and hunting in Far Cry 6. Arrows make no noise, so you can drop guards without alerting a base, and its unique version is the brightly painted Bullseye.
Image: UbisoftDiscos Locos
Discos Locos is a Resolver weapon that launches CDs as blades while it plays salsa music. Hip-fire shatters discs into shotgun-style shrapnel and aimed fire throws them whole, so it works at close and mid range.
El Besito
El Besito is a Resolver weapon that sprays poison or lobs a cloud of Viviro gas. Poisoned soldiers go berserk and attack whoever is near them, so it turns a crowded base against itself.