Here is a tactic that you could try with a six man squad:

Map: Aberdeen
Number of tanks: 3
Tank types: M3 Grand x 2
Valentine Mk2 x 1
Number of tankers: 5
Number of infantry: 1

Basic Consept: 1 Infantry will act as a spotter for 3 tanks, the Grands will be manned by 2 engineers each the squadleader will be manning the valentine.

The M3 Grand is an exelent tank if you want to have some good firepower, the 75mm main gun can shoot AP, HE and Smoke shells while the top 37mm turret can shoot AP, HE and Cannister shot. Both position have a MG but the lower hull MG is pretty usseless becouse you can not aim it. The tank has some pretty good stamina and it will survive at least 3 hits frontally. It's armor is pretty weak on the sides and it has some stability issues common with most WW2 American Tanks.

The Valentine Tank is a slow moving armored beast with heavy frontal armor but only a 2 pounder cannon with AP rounds. The main purpose of this tank is to draw attention and take frontal hits from AT guns and tanks without getting damaged at all. It is a good tank for squad members to spawn on but always stay away from landmine armed infantry because they can easely swarm your slow moving tin can.

If the M3 Grand tanks get destroyed your squad can keep spawning in on your tank to help out with flag assault.

The Valentine should lead the assault with the Grands in wedge formation, the spotter should make sure you dont run in any nasty surprises. Use cover from the hills, do not overexpose you sides and always turn facing the enemy. Do not bunch up to close together because one artillery strike will take out the whole team. Stay moving but do not be afraid to hold on to a good camping spot.

Feel free to use this as a template for your armor tactics and good luck on the battlefield!

P.S. Merry Christmas everyone!