I'm not sure about the ravagers. It may seem a logical choice, for you face a full mecha army, but he will probably put Pask in a punisher. When he will point it at your ravagers, it will be gone. I think you should be more MSU oriented, and take more 5 warrior with blaster units.
You will have some 36" shot from the raider, to try make the punishers jink, and 18" blasters next turn.