User blog comment:KATANAGOD/Black Ops 2 Logo and Trailer Release Date Leaked/@comment-124.197.35.74-20120410085752/@comment-4478081-20120410102803

Scopes on rocket launchers would be pointless. Depending on the speed the rocket travels, you'll probably only get kills on campers, or from lucky guess-shots, as the people you're shooting at are presumably quite far away if you need a scope to hit them. They do it irl because rockets are used to take out large targets such as tanks and enemy compounds (a stationary target I might add), not individuals running across a map.