Try the ground PvE mode but bring the AH-6 in your lineup. You can spawn it right away and so long as you keep 3km away from the SPAA that spawns and watch out for the MiG’s that spawn you should be good to go.
The heli grind is incredibly slow so be prepared to be bored out of your mind whatever way you go about it
A bit suprising that VN-1C won’t even come to the CN tech tree this time.
Maybe it is because VN-1C never served in the PLA like its domestic model ZBL-08? But VN-1C has better auxiliary equipments than ZBL-08. However it is still worse than modern NATO 8x8 ifvs.
Thai sub-tree might receive several Chinese vehicles in the future as well, like the VN16/18 or T-69-IIM, if Gaijin wants to enrich this sub-tree.
You still lose out on tank research progress then.
Not sure how the research grind in Heli PvE is these days, but I got through the British Heli tree using the Rooivalk in PvE very quickly