the worlord is here

[StainlessSteelCynic]

Of course this option would also stir up dust reducing stealth capability.

More than what the tracks already do If they use some sort of diffuser it would reduce the amount of pressure being vented

[Legbreaker]

Maybe, maybe not, but if the vehicle isn't moving, it'll still be surrounded by a cloud of dust.

[StainlessSteelCynic]

Maybe, maybe not, but if the vehicle isn't moving, it'll still be surrounded by a cloud of dust.

Good point, plus it would add a point of weakness to the hull bottom. Having watched the video a few times it appears that hull bottom is solid but I don't see any identifiable vents for exhaust anywhere else in the hull.
It appears that the engine air intake is on the rear deck (but the video suffers from average clarity), perhaps the exhaust vents over the top of the tracks, between the hull and the sideskirts Sounds crazy but I just can't see any likely vents for an exhaust port.

P.S. After seeing another video, I think the exhaust port is on the left rear corner of the engine deck, you can't see much in the still photos from the site listed above but in one section of the video http://www.youtube.com/watchv=hRDs__6dFsE&NR=1 it looks as though there is a cap sticking up from the position I mentioned, the sort of cap you see on the end of diesel generator exhaust pipes. This video http://www.youtube.com/watchv=UzblU7ciIHQ gives some shots with the vehicle near vans and personnel, giving a better idea of scale than the original posted sites video does.