From their position they could see right through the tunnel, although the far end was little more than a pinprick of light that gave few clues about what was going on out the other side. If Shining Armour was right, their ponies should be pulling back, drawing the Mareitanians into the tunnel, and what would be a bottleneck on the Ponyville end. An advantage for the Equestrians, but the Mareitanians had to push through if they wanted to win the day. The reality would be much different.