Wehrmacht as a faction has been stagnating and declining slowly for quite some time now.But it was held together by a few units and builds.Now with the pak nerf and the rifleman buff the true skeletal condition of this dying faction has been fully exposed.
Wehrmacht can never compete on a equal basis with its current tech structure and large number of redundant units in roster.
Most of their units are capable, though, it's just tech holding them back and a few costs adjustment/timings of certain units(looking at you FHT). StuGs perform decently against non-doc medium tanks, infantry and light armour, though could maybe use a penetration buff, but that's really it unless you're going to bump the cost up and vetted StuGs are a blessing with TWP. PIVs are a good generalist tank in comparison to other similar stock vehicles. These units all perform well unless dedicated TDs hit the field and it's really only due to one specific unit: the Jackson.
The only units that really need help, as in need more than 1-2 changes, are the 221/222 and maybe the PW, though all it really needs is a shorter cooldown once the tech costs are reduced to make it more accessible. Fixing call-ins would also help and allow the stock units to battle stock units or have more impact before doctrinal armour hits the field.
Also what may make the 222 even worse at this moment is I think it's bugged. When you upgrade to the 222 when in combat when the machine guns in use, or something else that I didn't notice, the MG only works when its stationary. On the move it doesn't even fire in proper bursts.