then you will be looking at warriors. Normally they come in two styles. 5 man w/ blaster in venom for the tank doing most of the shooting (with the guys in back shooting tanks with their AT weapon) or 10 man w/ blaster and SC in raider, with them shooting out of the tank while the tank shoots other tanks.
You ofc also need an HQ, and a Archon w/ Blaster fits into a shooty army quite nicely. You could also get one with 2 blast pistols for more firepower, but your have to get close and personal for that to work.
A ravager is also a must imho