What a piece of junk!

Mass Effect's Mako tank sections were so bad, that Mass Effect 2's launch-day content didn't have any driving sections. I'd argue that it should have stayed that way. Alas...

The Firewalker Pack adds a small handful of missions where you pilot the Hammerhead hover-tank, and if you think the word "hover" makes that sound cool, just, simmer down and remember the Mako for a moment.

Conceptual coolness aside, the Hammerhead is not fun to use. It hovers about as well as a tumbleweed, getting stuck on terrain almost as often as a non-hovering tank would; its mission objectives are limited to remedial strafe-around-stationary-targets combat, and tediously flying through nav markers; and the narrative backing for these missions is a lazy throwaway side-plot about researchers finding a wholly-unremarkable Prothean ruin.

It speaks volumes that Mass Effect 3 never got driving sections.

Better than: Fallout 4: Automatron
Not as good as: Mass Effect: Bring Down the Sky (which, honestly, had more interesting mechanics in one mission than Firewalker had in five)
The Hammerhead also features in: Mass Effect 2: Overlord, and isn't great there, either; but at least something interesting happens in that story.