The quality of Titanic has been degraded from what it was originally, probably so that it could be used in multiplayer. If I run the original SS08 or 1.1 I get full details in railings and boat deck windows, but from 1.3 on, even on a higher-spec system, those details are gone. There seem to be two separate models: In a mission written in 1.1, Titanic has full details in the first environment, but is degraded after the environment switch. Also, the weather shields below the bridge windows are missing.
Marty