I had already forgotten the horror that is Civ 4 combat when I was primarily playing Civ 5 with Vox Populi for a few months prior to now. (Note that I don't wish for limited stack sizes or 1 UPT!) It feels so damn infuriating when you lose a veteran unit with slim chances of defeat. And combat being always fatal in particular is perhaps the worst offender here. Withdraws excluded, so I guess all combat should utilize the withdraw mechanic? Just a quick thought.