Initial staging areas are separated by a wide open field, ideal for artillery and defensive operations. Make use of flanking maneuvers and natural defenses like woods, hills, and farmhouses, as these can be decisive. Another option is a well-coordinated high-speed combined arms attack across the field which could bring victory, but at the risk of a bloody loss. Colloquially also known as "Campingnovka" for the tendency of most players to just sit behind cover on their side of the starting field and snipe each other.
The trick to doing well here is team work. Send Light tanks to take an obscure route, while Medium and Heavy tanks cause a distraction and hold the line. Meanwhile, any and all available Artillery should be on standby for when the Light tanks flank the enemy and start marking targets. As for Tank Destroyers, well, they get a whole range of roles. They can snipe, join the medium and heavy tanks in the assault, protect the SPG's... The list is endless. Of course, this level of organization is almost impossible to obtain, but if people are familiar with these tactics then hopefully they will move to fill an appropriate role.