https://www.youtube.com/watch?v=Ney4KnauOQE&ab_channel=anOrcaDork
video link above, this mod shows that a grizzly tank is possible in halo infinite and might be a really good Scorp variant especially if it was a rare varriant or loot cave vehicle.
https://www.halopedia.org/M850_Grizzly
The grizzly tank in halo base.
For infinite it would have 2 seats like any other tank, the difference is the MG gunner is in the turret and has the ability to fire their MG or fire surface to air missiles (can dumb fire against ground targets) While the main gunner has the dual cannon.