Miroslav:
The big Rus says to Balthazar..."Meet us on the docks and let us know what you see from up there."
He then turns to A'Kos and the others..."There are ways for us to go beyond the walls and engage the enemy. We will need to be careful but a well placed raid or two can take some of the focus off the wall."
Balthazar flies off immediately to scout. He flies up high enough that he is out of bowshot range, and besides that gives him a better view.
After he meets the party on the docks to let them know, he flies to a high tower where he can overlook the battle but be safely inside, sets up his brazier, adds sulfur, and summons Sparky, his pet fire elemental.