Depends on the squad; in my military oriented fort i had two elite squads, and two squads purely for training new recruits. AND half the farmers and stoneworkers were drafted into a "people's militia" squad, which basicly had leather
My elite squad, with the militia commander, gets dwarven special forces training;
Initiation:
* Solo cave (savage evil, layer two) survival, in a full suit of copper, including the weapon. Duration: One season. Food and bed dropped into cavern. This is the primary reason why this entire squad has ☼Beak dog cloak☼ 's. Surviving this gets them into the Iron Uniform squad;
* Fight off at least 3 to 5 goblin prisoners; Only stripped of their helmets (and crossbows and bolts, because railguns aren't good initiation.)
* If the dwarf has pets. these pets are impaled on a ☼steel menacing spike☼ infront of him, together with some useless migrants to make him know death.
* The initiates' barracks is in a legendary engraved tomb, made in a magnetite vein. This is the first militia commander's fort, who fought off sieges, a titan, hydra and two forgotten beasts, almost on his own, with an artifact iron spear. I like to pretend this inspires them, especially since all the engravings coincidently seem to be about war, people being killed, etc.
Squadmember training:
* The drowning chamber: Two pumps from the aquifer pump water into this 3 wide, 5 long hallway into grates leading water back into the aquifer. this way i train swimming until they are Adequate, and i believe it trains strenght and agility to. Because no way i'm losing one of these demi-gods on a murky pool.
* Barrack training/sparring in the 3th cavern layer. They have a small temple down there, connected to my central stairway, so they can be anywhere in time.
* The crutch walkers train 24/7 just by walking around. thanks to crutchwalking giving agility.
* Killing any too big threat from below, and absolutely destroy all sieges up close.
Military forts are lots of fun. I also have 4 squads of farmers and crafters, armed in leather/iron mail, breastplate and helm and a spear of any metal, which train in a barrack outside my fort two months a year. They are the people's militia, farmers and craftsmen with pointy sticks; And the first defense before The Golden Bolts arrive.
Yet i still have to figure out marksdwarves. Sigh. I did give my dwarves [PRONE_TO_RAGE:5] though. I give them all months off during trainings to, so they don't get too depressed, and their own engraved bedrooms below the barrack-temple.