Main thing when playing 3rd armored is slowing the game down and not losing stuff to stupid maneuvers…3rd armored is an expensive deck so a mistake could lead to your ultimate downfall
Whenever I try to create a deck I go for type B which is good for both defensive & offensive, also now a days I see too much of arty spam when playing multi-player, for conquest type of game defensive battle-group plays out best, specially with troops which has advanced deployment feature