What video game is this?

The game is for PC. It’s quite old. It was maybe a year before or after Warcraft II came out. Maybe a little older.

All I remember about the game was most of the gameplay seemed to be inside a castle. I’m pretty sure you controlled an army, but it didn’t seem like real time. It wasn’t a massive scale like Warcraft either. It was more like you had a number of units and you equipped them before the battle. Then you would give commands throughout the battle inside the castle.

I mostly remember the character equipment screen. You’d have a unit selected and depending how much money you had, you could equip them with better armor. You’d keep going until your entire army was decked out in the best weapons and armor. Also when you changed their armor you’d immediately see what it looked like on them.

What was this game called?