Can't say if the modes are different then the wiki, but I can tell you that Lone wolf is a known broke talent. you can EZ mode the game with one character and lone wolf, 2 makes it even easier then that. it has to do with how the stats scale, and the additional AP each turn for a single character. it's very overpowered in its current state.
So a quick solution would be to drop the lone wolf talent. You'll notice a huge jump in difficulty. Another option is to install the Mod "Enemy Randomization (standalone). it give each monster in the encounter random buffs and abilities (additional to their normal ones mind you), and each encounter has a chance to spawn a champion, with drastically increased stats, and nicer loot once you defeat it. Very fun mod to have, I don't play without it.
Outside of that, Im sure that the limited saves and restart on death in honor mode makes it particularly challenging. but if you feel the game is too easy, you may first want to drop that broken Lone wolf talent.
