1) What causes my buildings to randomly burst into flames?
A) What can be done to prevent it

How do I put them out when it happens. I think it was mentioned in passing, but I couldnt find any way to scroll back through the messages give so if it was there, I wasn't sure how to find it.
2) Mainly with the basic spearman, but in general as well. Is there a way to tell them to attack a specific target without them getting back off of the wall. Most of the time, they throw their spears, then stand there,
I AM AWARE OF THE RECHARGE/COOLDOWN TIME FOR SPEARMAN, but aside from that they don't have a grasp on who to attack, but if I tell them to attack they get off of the wall and try to go melee. Basically, they fire, enemy dies, I right click on the next guy (maybe shift right click) and they dont move, but will then throw a spear at the enxt guy you TELL them to.
**edit, the is a capitol Bravo followed by ) as in second portion of bullet point, not that completely out of place smiley**