I would like to know how this was done? was it the [ATTACK] on the arrows? or the SIZE of them?
Warning: Block of text incoming
[/spoiler]Bodkin arrows have a smaller contact area, and a larger penetration value. Broadhead arrows have a larger contact area, and a smaller penetration value.
Bodkin: [ATTACK:EDGE:2:3000:stab:stabs:NO_SUB:1000]
Broadhead: [ATTACK:EDGE:10:1250:stab:stabs:NO_SUB:1000]
[ATTACK:edge or blunt:contact area:penetration power:attack:attacks:NO_SUB:velocity of attack]
If the contact area is less than 50, the attack is handled like a 'stab'. If the contact area is 50 or more, the attack is handles as a 'slash'. Blunt weapons are aways a 'bash'.
A smaller contact area means it is easier to punch through armor and tissue, but causes less bleeding. If you get a large enough contact area, for example on a sword, you can sever limbs. Penetration power is how far into a victims body an attack goes. A higher penetration power means that it is easier to punch through a victims armor and tissue to reach vital organs.
NO_SUB is used when a non-'normal' part of a weapon is used. Eg. swords have a pommel bash, where 'NO_SUB' is replaced by 'pommel'. In the combat report, it will come up as 'Urist McSwordsdwarf bashes Goblin with the pommel of his Adamantine Short Sword, massaging the tissue and making the goblin feel relaxed' (Not exactly like that though, but with adamantine it does the same thing anyway)
Velocity is used with the ammo or weapons material density to create momentum, which interacts with penetration power.
Note: SIZE dosent actually have any effects on damage (as far as I can tell with ammo). In Fortress Mode, the size of a projectile decides how fast the reload time is. I'm unsure of what effect SIZE has on melee weapons though. (Time for some !!SCIENCE!! ?)[/spoiler]
Hope thats been informative
On a sidenote: Would it be possible to 'stack' items by using a reaction that takes say, 25 plump helmets and outputs 25 plump helmets? Using burrows, you could have the farmers store the unstacked crops in one stockpile, use the stack reaction, then haul the stacked crops off to a different stockpile. Bit of a micromanagement, and becomes obsolete when your farmers hit ledgendary, but I want to know if its possible, and what the reaction code for the raws would be?