RE spam with multiple muni caches into fast Stuarts may work as well.
Sorry, but this is just a completly ridiciluos suggestion. You absolutely cannot afford to make even one cache in the early game, as any faction, let alone multiple caches. You simply get completely pushed off the map because your enemy has +1 squad. REs simply do not deal enough DPS and they cannot even reliably kill 1 MG if you flank it.