Maleficorum wrote:1) If you have a structure with 3 lvls and you have a squad on the second lvl completely covering the access point can they be assaulted? as there is no where to go even on a roll of a 6 you cant get up?
There are two ways of playing ruins: eithe ryou need a visible access to the next floor, or you don't. It's up to you and your opponent to decide which you use (page 83, "Walls, Doors, and Lateral Thinking")
But either way, the rules for assaulting in Ruins allow you to simply place assaulting models as close as possible if there is no room to physically place them... so it won't prevent an assault. (page 85, "Ruins and Assaults")
2) Same idea but the squad away from the access point but the squad cannot entirely move up the lvl since it takes a 3 to go up if half the squad went up would they be out of coherency and thus unable to move up or assault up?
Coherency in ruins is measured from the head of the lower model to the base of the higher one. (Page 82, "Unit Coherency")
Note though that while levels count as 3" apart for
movement, for all other purposes you measure to and from the actual models. So whether or not models on different levels are in coherency depends entirely on how far apart the levels are.
If you can't maintain coherency while moving only some models up, then you'll have to stay on the same level and move in closer first.