ReadME has all the info.

Engine 1 - Engine 41
Engine 2 - Engine 40
Engine 3 - Engine 44
Brush Engine - Engine 43
Squad - Squad 42
Ladder 1 - Truck 42
Tiller - Truck 40
Tower - Tower Ladder 41
Quint - Truck 43
Rescue 1 - Rescue 40
Rescue 2 - Rescue 41
Tanker 1 - Tanker 41
Tanker 2 - Tanker 42
Tanker 3 - Tanker 40
Command - Battalion 4
Ambulance - Medic 40

UPDATE 1.1 - MADE TEXT MORE READABLE ON ALL VEHICLES