The Battle for Hogwarts

You're a 7th year student and your house is your flair title. In the Battle for Hogwarts;

• What position would you assume (good,evil,flee)?

• Where would you hide/take cover (maybe you decide that the best advantage spot is from turrets, or possibly in secret passageways outlined by the marauders map)?

• What particular spells would you use the most (the unforgiveables, disarming, etc..)?

• Are there any sought of defensive methods which you could have employed, either jointly or individually, which you believe would have given an edge in the battle?

I think it would be interesting to see how clever some strategies can be, maybe we would put up a better fight and would have reduced the number of causalities.