In PnP Battletech I was a strong combined arms proponent. A company of mechs can cover exactly what their 12 cockpits can see, but 8 mechs, a company of armor, and a company of infantry opened a whole can of options.
With maps of this scale, my goal will most likely be a med/heavy mech, an energy weapon heavy chassis as one can easily find themselves a half hour march to a resupply area. Will happily be infantry or armor for any commander that doesnt consider us cannon fodder, though.