few tips for british players-
*) Find a good place between a high fuel point and a victory point (if playing a regular VP game) and move the command truck there after building your first few infantry sections, a bren carrier, and a lieutentant. Move the truck to the sector with the high fuel and park it there. The truck will act as a "free" , hard to harass observation post (more after the resource upgrades) and you'll need the fuel-the british are very dependent on it for damn near everything. New trucks you get for teching will also provide additional resources, so park them in the appropriate spots.
*) once you get the XP on your lieutenats, hit heroic charge with your infantry during fights. It turns your infantry sections into nazimowers, especially if they have bren gun upgrades.
*) build slit trenches in places that benefit you greatly, but offer little benefit for the enemy-that is, build them right in front of buildings facing the expected direction of the enemy.
*) Don't ignore the Bofors 40mm AA gun. It rapes infantry and light vehicles, and it doesn't need an upgrade until real tanks hit the field, at which point the devastating 17 pounder with the AP round feature will two shot a Panzer IV.
*) The glider commando tree allows you to get a fast and easy forward HQ with infantry support by landing the glider. PIAT commandos are a huge boost with a lieutant when fighting armor.
*) Against Wehrmacht, having one infantry section with the rifle grenades REALLY helps to clear out MGs from buidings.
*) You have two real ways of sealing the deal as the British-25 pounder artillery or bringing in some tanks and getting a command tank.