For the most part i get satisfactory results. I havent been keeping track, but in average-sized battles, where im outnumbered, i'll destroy the entire enemy force, and lose an infinitesimal fraction of my army.
ex: 600 vs. 600
i'll have 500 something troops remaining
But i kind of cheat... lol
What i do is i put my armies in situations where i KNOW the AI will attack me, which allows me to deploy defensively on high terrain. This works in my favor because i tend to abuse my principe's pila and other missile troops.
edit: also when i siege settlements, i batter a bunch of holes in the walls/gates and put my principe in front of the openings. Enable guard mode, enable autofire, and let them kill a bunch of enemies. Then i move them back, and bring in my velites and other skirmishers. During this entire process, i'll kill more than 1/2 of the enemy army, which then retreats to the town square. then i swarm in the settlement and surround them in the square, and continue to abuse them with missile fire, then mop things up with heavy infantry and cavalry.
When i siege stone walls, i send troops in on a siege tower, and strategically lure soldiers on their walls to my sap points, which i then activate when their troops walk over it. Then i take the walls and towers, put my skirmishers up, and repeat what i do to smaller settlements: rain javelins on their army, until they lose so many troops that they retreat to the square, then i walk into the city with the rest of my army, unopposed.
Also, when im heavily outnumbered, i deploy my troops at the corners of the battlefields so i cant be flanked..
Otherwise i wont be able to achieve a heroic victory, or a satisfactory clear victory.
Of course i shouldnt be doing all of this... haha
