I.T. Kid

Launch rocks to destroy the Castle

In a real Christmas spirit, shoot Christmas trees with snow balls to save the Christmas. Makes sense, doesn't it?

What can be a better time spending for the president than fighting terrorists and defending the queen?

Zombies are not going down easy. Likely they are dumb and most of them are slow. Aim at the fast ones first. Allow some time to reload your gun every now and then.