u/Noid-Droid

Having some trouble on a Dark Crusade medium difficulty campaign, mostly against Necrons. Any territory with two bases on a small-ish map, I just get mobbed by warriors, lords and then pariahs before i can get any armour out onto the map. I've tried attacking early and i've tried turtling but to no avail.

Any advice for a new guardsman? Especially the first ten minutes.