So if you look at the in
this link the Scavenge commander is bottom three in commanders taken in loadouts in every single game mode. Scavenge is just lackluster in what it brings and has a unsynergetic set of abilities (and several of them are very meh). Infiltration Grenades and Jaeger Infantry seem to be a more aggressive sets of abilities but then the buffed scavenge and 105mm artillery are more based around an economic plan. Then the ostwind struggles to find a real home due to the rest of the commander being so meh.
Here's some ideas
Ostwind ---> Replace with captured T-34-76
Thorough Scavenge ---> Buff
Infiltration Tactics ---> Something with munitions like a recon pass or light artillery barrage
Jaeger Light Infantry Squad
105mm Artillery Strike
A t-34 fits extremely well with the theme of the doctrine, infiltration tactics being so cheap doesn't really work here, and thorough scavenge should be improved further to make it more useful. I would maybe speed up the salvage so it's easier to pull off.
Also the T-34-76 would be the same stat wise as a Soviets T-34-76 except with 5 vet levels and maybe it doesn't get the ram. It would cost the same and come at the same timing as Ostwind and Hetzer.
I also think since Ostwind would be cut if this was done the ostwind should be moved to Luftwaffe Ground Forces by replacing the Heavy Fortifications. It fits better in that aggressive doctrine rather than the defensively natured heavy fort stuff.
Beyond that Breakthrough Doctrine is also the most popular commander in team games and it could be considered to remove Assault Artillery from the doctrine and put it into a different less effective doctrine. Breakthrough has a super heavy TD alongside some other good abilities it really doesn't need also a potent heavy artillery call in. That could potentially help some other doctrine a lot.