Just change creeping barrage with a normal circular barrage of rockets with higher scatter but larger than usual rocket arty AOE, make the creeping barrage a vet ability so it doesn't pinpoint team weapons and put the flame barrage as buffed ability in incendiary munitions with le.IG flame barrage.
If the creeping barrage is so terrible make it a creeping barrage of Blendkörper style rockets so it just denies area and forces healing but doesn't wipe
Cause mechanized without Stuka would feel empty as a tier option.
Although the idea stem from before the current rework to T1 which made medics and ISG more available. The idea was to get an anti garrison tool once you went T2 without having to overcommit on the Stuka.
On a tangent point in regards to mechanized, i think resource conversion/cache could make a return with some tweaks.
Either munition or fuel should be converted from mp.
Or for the same cost as a cache, the mechanized truck could be upgraded to act like it and ONLY giving resources to the player who build it (basically like Opel)
No please, no God, don't destroy the timings balance.
Right now all vehicles are more or less viable for their timing but not OP.
OKW does NOT need to convert resource imo
What OKW does need to rise 1vs1 WR is being able to set up either Med or Mech hq as second HQ paying and unlocking only the repair/med station (and eventually upgrading to full Tier by paying the full price), and having Volksgrenadier reinforce cost go down by 3 mp points by vet 4/5 in place of that useless late passive healing.