[QUOTE=fluffsuit]a good stack to use is all mounted thunder braves. divide it into 2 parts. one part leads the enemy around while the other attacks teh rear and flanks.

Yes, I have found that a good plan too. Also, if you place your infantry right back and up on high ground you can send mounted thunder braves and mounted apaches to harrass the enemies as they advance (remembering to switch the skirmish mode on for thunder braves!-the ammount of times I've been caught out by that one.... ).
By the time they get to your lines you will have seriously messed with their morale and a well timed surprise attack from some scouts (who can conceal themselves virtually anywhere) causes a very pleasing domino effect of routing enemies who you can then mop up with ease using your cavalry who will have by then run out of missiles and can just run them down as they they try to escape.