Be nice if half-tracks had a decent chance at getting to Vet 2 without requiring an upgrade to their armament, either done via reinforcing or maybe getting XP for being near the combat sort of like the PE system, but only for the unupgraded half-tracks.
Trying to get a stock 251 to Vet 1 takes ages let alone vet 2 because of its peashooters.
It was said specifically during the cast that if FHT would loose reinforce, then normal 251 would gain a buff to its MGs for it have more utility and can vet without the need for flamers.