FCR in-game difficulties compared to original gameeasy = mediummedium = hardhard = very hard/insaneI can't say which mod is harder - FCR or Flash Mod. It's hard to compare difficulties because FCR is like another game, not The Witcher we know. FCR is aimed to be more realistic so you can kill humans with 2 hits but you can die as easy as them. Dexterity is most important. Enemy accuracy is set to vary between 15-35% depending on class type (weak, normal, elite, boss, elite boss). It's 15-35% with optimal character development when you first meet that particular enemy. Blizzard decrease enemy accuracy by another 10%, pain and bleeding by 5% each. You end up like a witcher in books - a duel master, unbeatable by humans in swordfight but when you fight monsters or you are surrounded you can die easily and extremely fast. Even the best blademasters die when backstabbed. Only monsters and skilled humans will hit you in solo battle, but when attacked from the flank or from behind every opponent gets +50% bonus to accuracy. It's a sudden death. Mobility, blizzard, good use of signs is crucial. You will be rewarded by killing most enemies with 1 or 2 attacks. Fights are extremely fast and dynamic. Specialised sign user will deal extreme damage with Igni. 75 base damage + value dependend on enemy max health and sign intensity, could be even >100 damage while the strongest non-boss humans have around 90 hp... Aard is very useful even without critical effects. By using aard you gain few seconds to attack. Enough for 1-2 attacks and that's all what's needed to kill with FCR mod.Remember to read bestiary, recipies and tutorials. Only from there you can learn for example that you won't hit a specter without specter oil...Oh, and check The Witcher folder. You'll find excel chart with detailed enemy parameters, weapons, armors and damage calculator.Have fun.