Never, EVER, allow users to control the transport in the campaign.

It will screw up the scripts.

src/display.c

@@ -780,7 +780,16 @@ void processMouseClickInput(void)
 		}
 		else
 		{
-			dealWithLMB();
+			if (!bMultiPlayer  && establishSelection(selectedPlayer) == SC_DROID_TRANSPORTER)
+			{
+				// Never, *ever* let user control the transport in SP games--it breaks the scripts!
+				ASSERT(game.type == CAMPAIGN, "Game type was set incorrectly!");
+				return;
+			}
+			else
+			{
+				dealWithLMB();
+			}
 		}
 	}