what the heck is the approach for attacking a castle??? i'm on the 12th mission of the campaign, where you attack the snake's castle, and then defend it... 1 out of 8 times i can even take the castle. and then as soon as the second round of attacks come (with macemen and all), i get housed. i don't have enough time to set up shop before they come and mop up with me. likewise, i tried an attack level (siege) and had no clue what to do. i had like 200 troops to command and just had no idea the best way to organize... even when i try to use the archers/crossbowmen to provide air cover, they just get mowed down too quickly from their bowmen on the walls... what am i missing???? also, i'm on freaking easy! so i must just be missing some obvious strategy.... i hope.