"""Easy Mode - basically a "retry" option on failed tactical missions. we could also do some slight rebalancing on easy, like giving more health."""What about, instead of level of difficulty, have toggles ? Health levels, Retry, Numbers of Enemies, Rewards... So everyone can chose what they like.
Like, maybe i want the hardest difficulties, but without permadeath and with a retry.
Or maybe i want to play it easy, but with minimum reward, and so on.