And beat Selveria on Barius!!! Not as the game designers intended lol.
Another thing you can do if you want to finish it in less than seven turns while taking only one cp, is to have Audrey one shot the Batomys. For her to do that, you have to have both her tank slayer and good buddy potentials activate and don't run out of range of the tank or buddy that activated it, while having the most powerful lance equipped. Also if you don't defeat Selvaria in one phase she regains full hp the next.
A great thing about Valkyria Chronicles are the multiple approaches you can take while playing through the game. Different strategies, tricks and hax(Azure Witch cough cough) or playing it your own way such as getting no damage taken runs, or no upgrade playthroughs(consistent with the cutscenes!), with all kills in the earliest turns possible, although you might have to save/load a bit. You don't get any medals buts its all for fun.
I like watching others play so here are some vets that play Valkyria Chronicles, like a Boss!
http://www.youtube.com/user/probwu/videos http://www.youtube.com/user/ValChronification/videos http://www.dailymotion.com/user/The_Busard/1 <-- Check out the Fun with tactics :D