Okay
First, I turn of the timer, since when is a battle won or lost due to the time of day.

Second, I turn of restricted camera because you fight it half the time anyways and that way it makes it a little easier. Plus to find whatever one unit hiding near the end. Its not really cheating because you don't have time to look around during the battle

The only cheat I ever really use is that I TURN OFF LIMITED AMMO.

Think about it, you shoot a few arrows at me and I run out, guess whos arrows I will use next. Plus, if my buddy next to me dies off, I will pick up his and use his.