BKC III scale?

[General Bt Sherman]

Ok I have a quick question about the scale in the new BKCIII. If one base =1 platoon, what does one tank =? I believe with BKCII I used a scale of one base of infantry = a platoon and 1 tank = 1 tank.
Thank you

[Chieftain]

Each unit represents:

A platoon of infantry or support infantry (approximately 50 men)
A battery of guns (approximately 4-6 ordnance pieces and crew)
A platoon of vehicles (approximately 3-4 tanks or similar)
Or a similar group of battlefield assets.