[TF2] Set the launcher of Sentry Rockets to the sentrygun#1769

ChaseTownsend wants to merge 2 commits intoValveSoftware:masterValveSoftware/source-sdk-2013:masterfrom

ChaseTownsend:Give-Sentry-rockets-launchersChaseTownsend/source-sdk-2013:Give-Sentry-rockets-launchersCopy head branch name to clipboard