First question, it should be easy: What exactly is required to create a cave in? I started in a human town to attempt it, I channelled around a house and had completely dug out underneath it, but nothing happened. What gives?
Second question, in what stone-type should I look for flux? I seem to stuck in Chert and Jet, with assorted iron ores. Also Gypsum. Go deeper?
Last question, and this one is a bit of a doozy.
How do you effectively use the military? I haven't had a need to use it before, but I got two ambushes today when a Dwarf Caravan came in. One from the west, one from the east.
I had my military (and caravan guards) take out the first group, but by the time they were finished, the second group had appeared next to my out-door farm (Strawberries.) Then they went into my base (near my well and to-be barracks), and slaughtered several dwarfs. Then they went downstairs, killing a dwarf on the stairs, and slaughtered more in my statue lounge and one in his own bedroom.
So, what the heck are you supposed to do? Draft everyone briefly so they pick up their weapons and armour, then just leave them as civvies until an attack, then just patrol/station them around where the enemy was/is?
Fortifications maybe? Also, do seige weapons work on different Z-levels (IE: Can a ballista/catapult shoot down a level if it's overlooking the air?)
BTW, for the details, I think I had 18 dwarf deaths, including a baby, and 5 recruits. I think 9, maybe more that fled, goblins.
I think this fort is going to survive, though. I lost a few carpenters and farmers, but that can be fixed. Plus I already have a ton of food (75+ barrels in food stockpiles) and several farms + hunters... One possibility is the father of the baby will go nuts. Which would be bad.
Basically, military suggestions. Help me NOT get slaughtered again.