In Campaign mode, the Rocket Launcher is obtained in Chapter 5 of Leon's story, inside Ada's helicopter. It has a small kiss mark on the loaded rocket, likely left by Ada to tease Leon or as a final mockery of Derek C. Simmons's obsession with her. The players will find the Rocket Launcher just as the mutated Simmons climbs onto the helipad of the Quad Tower, attempting to destroy Leon and Helena Harper one last time. To prevent Simmons from destroying the helipad, the player must grab the Rocket Launcher and shoot Simmons in the eye, finishing him once and for all. The Rocket Launcher will not appear in the player's inventory in the next playthrough, regardless if the player decides to use it or not. A secret medal can be obtained by finishing Simmons without using the rocket launcher.