I put up some kind of a screenshot here, where you can at least see that we had to force Isi to go on his hunter. And by "force" I of course mean hemvolunteered to switch.
Rewards were the usual runes, relics, medallions, a first age token and also some kind of an axe that went to Laslo. Oh did I mention Isi had just swapped from his champ to his hunter?
Anyway, I'll be looking forward to doing that HM many more times, I think it's quite fun.