Slitherine

Yes, plus maybe at the cost of some prestige in addition...

Fantasy General and Fantasy Wars have transferable artifacts (which do the job of heroes). Free transfers between scenarios are quite handy but artifacts are rarer than Panzer Corps heroes and normal units can only have one, so there's more need for this.
It would be good if the hero awards could be adjusted slightly to better fit specific classes - recon biased a little to spotting, move and defence, and maybe some extras created like +1 ammo, +5/10/15 fuel, +1 max strength and +1 ROF for artillery and AA.
Unfortunately hard coding prevents these changes, but we have some very creative people here and some of these could be approximated without much effort. Eg gift units named Fuel Ammo Str would allow scripted changes to the property for all named units in specific scenarios while normal units wouldn't benefit