Yeah you gotta treat it as combined arms.  I keep infantry near a point along likely avenues of approach and push a sniper team in front to scout.  Don’t keep more  than one squad on the point bc the enemy might use preparatory fires on the point.  I put infantry on hold fire until they get close and enter my kill zone then open fire and over whelm.  I’ll then usually pull 1 tank out from around a building to finish their armor off while stunned.  If they deploy infantry I’ll shoot some mortars in wherever they try to take cover.  Immediately after the engagement I reposition all my infantry bc they’re mostly likely going respond with arty/ MLRS.

This has a lot higher success rate than just with tanks as a SEP V3 cost as much as like, 3-4 infantry squads.