FOUND3RofDOOM:it locks into the ark. at the start of the level: the ark, you can hear truth say: 'my dreadnaught cannot rise, it is (not sure about this part) -landed on the ark and connected into its systems-. (srry i cant remember exacly what he says). Truth says it through one of those hologram thingys of himself.
He says 'My Dreadnought cannot rise even now it is engaged ... i forgot the last bit
marine:grenade out!
grunt:I caught it!
elite:*sigh*
BANG