I highly recommend watching some of my youtube videos, they should help you out greatly.

https://www.warseer.com/forums/showt...-Video-Tactica

I would make your wraith unit into a large 6 man squad, use a technomancer with a node instead for your hq choice. Give him the Dimesional Sanctum cryptek arkana so he can teleport next to your wraiths the turn they are about to charge so they can hit on 3's. Deploy your destroyers along the flanks to keep them protected and use your destroyer lords aggressively you want them to be the targets. The destroyer lord with the default staff should upgrade to the voltaic staff that way you have access to more - 3 AP shots in half range. I hope this helps.