Lay your pipes on the table before you spend scrap on this blueprint. The tube takes four metal pipes once, and every rocket it ever fires asks for more from the same pile. Those four are the pipes of two plain rockets, gone before the first shot.
The research order matters more than the metal. The launcher sits at a Level 2 workbench, and so do the high velocity rocket and the incendiary rocket, while plain rockets wait for explosives and Level 3. A group that learns the launcher early fires HVs the same evening but opens stone only after Level 3. Pipes can't be crafted before then either, so each one is road loot or a recycled gun.
Craft one launcher per raid, not one per player. A second tube in a teammate's box is pipes that could have been rockets.
Tip
Keep the launcher you take off a dead raider. A green recycler hands back only half its pipes, and a looted tube cost your box nothing.
Questions
Rocket Launcher ×10: how many resources?
High Quality Metal ×400, Metal Pipe ×40.
Which workbench does Rocket Launcher need?
Workbench level 2.
How long does Rocket Launcher take to craft?
25 s for one, every step included.
How much scrap does researching Rocket Launcher take?