: It can be done. I discovered this today and then found a few videos where
: others had managed it. It turns one of the toughest boss fights into a
: complete joke, as basically none of his attacks even damage the Wraith. At
: the worst all he does is just EMP you over and over again.

: There appear to be multiple ways to get the Wraith over the rock barriers. My
: way is to drive backwards up the right path to the boss fight, because the
: back half of the Wraith levitates high off the ground and so can easily
: "climb" over obstacles. I would also recommend you don't use the
: Wraith in the tank run to the boss fight, nor let Osiris drive it. Just
: drive past it, take out the Warden in the Scorpion in the first encounter,
: then park the Scorpion right after the light bridge and run back for the
: Wraith. Don't park too far from the bridge, or it will shut off.

: https://www.youtube.com/watch?v=wypk0FLTu44

: Now I wish to find a way to sneak a tank into the THREE Wardens boss fight.
: :p

Congrats on finding this on your own.
We Halo Fans have a long history of getting vehicles where they are not meant to be. Halo5 is no different. Day one, my buddy and I hot both the Scorpion and Waith to this fight. I got the Scorpion over by taking the ramp on the left and my buddy followed suite with the Waith. It was easier for him but I just needed a little push.

We've also tajen the Warthog, Gungoose, and Ghosts into the very last battle. We've yet to get tge Mantis into this fight. It's in the plan but not a priority since the fight can be skipped.