In FFT I tended to not use tactics very often I would just steam roll enemies with simple attacks. In FFTA I just obeyed the law whenever I chose to and whenever I decided not to I would simply blow it out the water with an anti-law card. However I'm currently doing an FFTA 2 playthrough where I am not using antilaws (if there are any, I'm only 1/4 of the way through the misisons and haven't encountered them yet) I am attempting to obey the law in every battle, sometimes it's impossible my levels will be just too high for me to obey the law (hence I have a second non-battle party in my clan they're normally used purely for the dispatch missions but in situations where needed I bring them out in battle) or something similar but in all other circumstances I obey that law like it is the be all and end all (restarting the game if I fail to keep to it) This often requires tactics the biggest issue however is some laws such as movement/positioning laws and pushback mean a random critical hit can actually break the law.