Every new commanders especially with new abilities are supposed to be pay 2 win because Relic balancers didn't had enough time to test them, so they've been made more less balanced, after few patches this gonna change i think
I really would see Barton do ostruppen-sniper spam with S-mine field spam then pak+ brummbar
S-mines are lame, never build them, Brumbars will never happen since all Fuels are going for redistribute resources (a.k.a Tellers and Railways for that)