If I understand this correctly, you mean to swap the riegel and teller, which would make the riegel non doc, BUT because you mentioned fuel investment you intend to keep it being deployed from the HT or 222 as mentioned and not from pioneers. Then the teller just gets moved to riegel docs etc. USF currently has the same thing as a Riegel in the M6 AT mine deployed from the M20. Even though USF has access to this mine, it still is not enough to warrent a faction not having nondoc mines. Hence USF was given nondoc mines.
On a side note though, I don't think I've had a whole lot of instances where I just straight up lose my light to a teller. I know OST has mines that can 1 shot my T70, so I just move my pios around with it.
Ah sorry then I misexplained.
Dont move the mines, move the effect. Make the halftrack (or the 222 might be better because of flame track meta and making more choice) laid mines the ones capable on nuking lights instead of the pio laid ones.
That way Ost still has a way to neutralize the threat of lights without killing them outright. In order to outright kill they would need a certain doctrine and a halftrack so they in turn have to invest some fuel in potentially denying alot of enemy fuel.
Just a thought to keep the powerful potential without completely leaving Ost high and dry when it comes to their vulnerability to lights
So to clarify:
Pios lay say 40mu mines
Only trigger on vehcles
Heavy engine damage on lights instead of kill
Heavy engine damage on all else as well
Halftrack/222 lays 50mu mines
Only trigger on vehicles
Higher damage capable of OHK
imob to all else.
The finer details are up for discussion (well... All of it is, I'm no dev...)
Both would have their reasons to use. Cheaper or more expensive and more powerful outright. The cheaper normal mines would open up a bit more chance to use as Ost and maybe offer more alternative to the current light counters.