So I've been thinking about the removal of FRPs, and here's my humble two cents:
It occurred to me that WFA as a general rule of thumb has no non-doctrinal reinforcement-providing troop transports like EFA does. I'm curious if this will be addressed as well?
Looking at OKW specifically, the 251 Walking Stuka is the easiest to retool. A marker_ext and some hold_ext edits would allow it to function similarly to the other open-topped halftracks. The Stuka's cost can be lowered and the rocket artillery functionality locked behind an upgrade that, depending on how testing plays out, may or may not take away its transportation and reinforcement abilities like CoH1. This would allow MechHQ to have forward reinforcement, too, opening up new venues of play. There are even voicelines for an OKW troop carrier in the files that can be heard on those rare occasions you capture an abandoned APC.
I haven't quite pieced together ideas for UKF and USF besides making their doctrinal halftracks non-doctrinal. I know for certain that the 251 Stuka as a troop transport functionally works.
In my mod the Stuka Zu Fuss was OKW's transport. It lets infantry fire out of the vehicle (with correct animations!), and that would probably be the better implementation.