When Terran have blocked the entrance of their base with buildings, How can it be broken through with zerg?
If you have supply depots as a wall, banelings can run through that pretty easily. If you use a barracks/factory wall, it's a little harder to break through.
What if there are marines firing at the banelings and the marines kill them before the banelings reach the defenses?
I play Terrans mostly Now, when that happen to me, I just use siege tanks (siege mode) with marines waiting around it. I can get siege tanks early in the match, so usually, I do not have problems with that... For Zergs though... Well, base on my experience... a lot of players use zerglings to get my marines attention then use banelings to attack... hate it
use air units, as far as trying to rush, u prolly wont be able to if they have the choke blocked. They will have to much of a defensive advantage to get any Lings through.