The RPG-7 in Roblox Wanted appears to be found as a weapon crate/static spawn rather than unlocked through a normal progression quest. One source says to go to Fort Imbridge , head to the tall tower, climb the stairs, and pick up the RPG-7 from the gunbox, then press Tab to equip it.

What to do

  1. Open the map and travel to Fort Imbridge.
  1. Find the tall tower at that location.
  1. Climb the stairs until you reach the RPG-7 gunbox.
  1. Press E to pick it up, then use Tab to select it in your weapons list.

Extra note

Another community source points to the RPG-7 appearing on top of the Fort Ember reach base / torque tower area, which lines up with the tower-locate- and-loot style of unlock.

Quick fix if it is still locked

  • Rejoin the server and check again.
  • Make sure you are at the exact spawn point, not just near the base.
  • If the game has changed since the video, the weapon may have moved or the spawn may be server-dependent.

TL;DR: Go to Fort Imbridge, climb the tower, grab the RPG-7 from the gunbox, and equip it from your inventory.