Originally posted by Leggyguy
They cannot use it, as far as I can see.
It's proven rather powerful in my game so far. I'm not using it, but the AI is stacking an archer in with SoD's and getting a free shot at my swords and now MDIs when I attack the stack. It seems to take an hp off 75% of the time so far, but that's just a rough guess and not enough trials to be athoritative, anyway. It's frustrating sending a vet (4/4) MDI against a vet (4/4) MDI and have an archer in the stack reduce you to 3/4 before you start swinging. I'm pretty sure I've lost a couple of MDI that way, but then again you never know how the RNG's gonna go.
It's annoying me so far, but that's not a complaint. Actually I'm impressed the AI appears to be combining arms intelligently in my first game. I just need to learn to build a few archers myself.
I'm playing emperor level, normal aggression by the way. I'm the Incas in my first game (random civs, random climate and lands, standard map, appear to be on a large wet temperate or warm continent), and the Myans and/or the Americans have used this tactic on me. Myans seem pretty aggressive.
EDIT: SoD means "stack of doom" or "stack of death". Any stack of units might be called this. I don't think an archer by itself gets to bombard, but a single archer stacked with other units gets to bombard if another unit in the stack is attacked. Yes, MDI is medieval infantry. Sorry, I'm using common SG (succession game) abbreviations. "4/4" is the hit point/max hit point, so a 3/4 MDI is a veteran medieval infantry that is hurt one point.
EDIT 2: See toh6wy's post 3 posts down about defensive archer bombardment frequency. He's right. With multiple archers, each archer defends only once per turn, and only one archer defends per attack.