Yes you can spray through ceiling on B Nuke but from what I heard they nerfed that and you only do like 7 dmg per shot there now.
Anyway I need to take a look at the points where you can spray through walls on cache and mirage. On mirage I only know this one on b house.
Also I dont know If you can still spray through the wall at the ramp on nuke onto A.
Furthermore we could use the wallbang as T more often on nuke. Worked sometimes when I tried it again but I cant remember where to aim exactly

Well this d1 predicition was pretty standard. If you stay there as a ct when its smoked its your own fault.
HE spam works also.
So its just a no go.