mmarci: Alternative Balancing is an optional built-in mod that makes the game a lot more challenging, especially for melee players - it comes with the community patch by default. You never played the game so it wouldn't make too much sense to you if I listed the differences, the game is just harder really (tougher fights, slower and more limited progress, etc.).
There is another option called Alternative AI which makes melee even more challenging, definitely not recommended for new players but a welcome addition if you are looking for a taste of humiliating defeat at the hands of common rebels or orcs at the start of the game and work your way up from there.
First playthrough I wouldn't bother with them, the game is massive and there's plenty to discover for the second-third time around as well, but for those I would install content mods as well for the full experience.
Thanks! I tend not to use mods like that anyway, especially the first time. Sounds like the game as-is will be all I need. I appreciate the help!
Do I need to do anything special to turn AB off?
Also, I've read that the Forsaken Gods expansion messes up the game or makes it worse somehow. Should I just play the base game without the expansion?