Well, the question should be self explanatory, but ill explain it a bit more.
Do you use 1 or 2 lines? Do you group your infantry, cavalry? Do you use guard mode? Do you like your army being uniform and balanced?
Personally im fairly picky about my battles. I like to group my men into "Weaker" "Stonger" "Elite" sections, as well as my cavalry being grouped together. If I have a lot of the same Unit, I usually group the Lesser experienced men together to create the first line, and then the stronger men as the second line.
I usually try to create a strong infantry front and then Hammer the enemy with some good heavy cavalry when they are occupied. Not very unique, but it works.
I was wondering about this for a long time, as Ive seen many screen shots where people don't group their units.
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