Siege is one of the scenarios of Mobilising Armies. As defined by Jagex "In this scenario, victory is gained by breaking into the castle that sits at the centre of the map. To break into the castle, you'll need to breach the walls with a squad or with a catapult. To attack the walls with a squad, use the ‘Attack wall/catapult’ command in your Squad Commands tab and then click on the offending wall (you may also attack an opponent's catapult in this way) or simply left-click the wall. To build a catapult, use the ‘Collect’ command in your Squad Commands tab to gather wheels, wood, rope and limbs from the shipwrecks that are strewn across the shore, or simply left-click the shipwreck. Once all of the catapult parts are collected, a catapult will automatically appear. Use the 'Collect' comman