Ranger's Guide to Archery Vol 2
Book
Exploding Arrows: Not quite a rocket launcher, but it will do. Craft exploding arrows and crossbow bolts.
Teaches
Reading this unlocks the recipe for:
?Perk Rangers Exploding Bolts
Where to find
Places on Navezgane containing the selected container. Percentages are per-container drop chances. Click a place to open it on the map.