Return of the King: Damn Catapult

[Moodmon]

Ahem. Can beat Jet Force Gemini, can't find a huge catapult in RotK. I'm playing the Xbox version on the Minas Tirith Wall level. I know where one is (bottom left) as I've used it to kill one siege tower. But I can't find the other one, and I keep losing. I've checked up all the towers (the other three are empty, apart from the bottom right one which has a health potion). Anyone care to enlighten me?

[Welrain]

Umm..there isnt one.

You need to attack the seige tower with your missile weapon.

LOL

[Moodmon]

[Bashes head against desk]
[Bashes head against door]
[Bashes head against Xbox]
[Falls into coma]

Cheers.