From Tyler Tobolt:

Here is Milwaukee Rescue 4. This rig isn’t seen much but it responded to a H.U.R.T (Heavy Urban Rescue Team) response at 30th and Galena on 2/10/21 around 10pm for a low angle rescue. Rescue 4 is stationed with Engine 23 and Rescue 1 at 9th/Greenfield, it is one of two H.U.R.T stations in Milwaukee. 

Milwaukee FD Rescue 4

Tyler Tobolt photo