Lego Halo does not even exist.
on the internet
There is no Lego Halo. If you have seen one, it would be 100% from a Lego fan. You will have to look around in Ebay, as Lego never made any Halo, or related sets.
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You can find custom LEGO instructions inside of every pack of LEGOs. There are web sites where you can find custom LEGO instructions such as: Rebrickable.com Worldbricks.com Brickshelf.com LEGO Digital Designer Gallery See Related Links!
There are no Halo LEGO sets, so there are inheritly no instructions. Mega-Blocks got the rights to Halo (to build children's toys) 5 years ago, and have been dutifully building sets since then.
in halo 3 there is none to drive
Go to the link below and click on 'Lego' and then 'Halo Lego' and there it is the pelican dropship in Lego form + instructions
Custom Lego Halo weapons can be found on sites like eBay and Firestar.
You can't drive a pelican in Halo 3.
walmart
Try www.brickforge.com