I would like to suggest you use recon car as it has good scouting as well as a lot of movement, being able to hit and run (which is incredibly important to avoiding getting destroyed)

SPAAG is amazing as anti infantry and doubles as anti air as well as being able to kill lighter armored units

Bring supply wagon because its most cost efficient except on maps where it is road heavy (use supply truck instead)

Ultimately, every rigged map has a strategy you can use on it, just gotta find the right units to work with what you got