>>96287953
Take outriders led by a bike chaplain. High toughness and high movement to charge in and tie up their biggest gunline threat. I assume you already have some anti-tank. Take a storm speeder thunderstrike to help your anti-tank.
Pick your favorite melee unit that can deepstrike and hold it until your enemy deep strikes into your line. Hopefully your infiltrators kept them far enough away for you to deep strike your melee unit between the enemy and their target.