You didn't really specify, but is this because of how they can be caught by dirtbag spam?
If so, perhaps it would be better to make a change to tremor (also in tank fac).
I'd love to see a new tremor "state" that causes it to fire green bullets that do 1/2 damage.
It would still have the same terraform damage (or slightly nerfed), but in this setting it won't really bother heavy targets much.
Thus, you could fire the tremor at the area you are advancing minos/cyclops into..
Not sure how that would play out in an actual game however, might open up a can of worms.