I watched a little bit of your match and it looked like you were doing fine. Except for floating 1k+ manpower for most of the match
Making a panther may not have been the best choice. The Jacksons with all that path vision will be too much to deal with in the lanes of the city. A werfer may have been a better choice. Once the paths are gone, any infantry can walk all over a Jackson. Your mates all went arty eventually though. So the panther was a better choice long term. It just gave the USF players a little more time on the field.
Dirty always says a gren blob beats paths. But that may be tough in the city. Lately, I do not make an MG unless I have an OKW partner.
On Lienne any short range inf may work once you drop some smoke to get close. Since you are fighting in a small space south of the VP. Flame pios are also always a good thing in the city to clear buildings. So you smoke, blob in some Pgrens and flame pios in case a building has units/MG. Pgrens shrek blob would be good later to delete Jacksons also.
It is OK to let the south team have the VP for a little time. Because once you get pushed out of south, it becomes almost impossible to take it back. The buildings are all too strong. And its usually GG time. So a good killing stroke works well there.
Not saying any of these ideas are good. Just ideas.
The flame half track was the right call. Proven by its 30+ kills