I'm building an imperial guard infantry regiment and i'm preping for a game against an ork horde list. I was going to use 2x30 man conscript squads backed by yarrick and a company commander, however after some theoretical dice rolling any decent ork horde will roll over the conscripts, so i've been thinking of using 5 Flamer special weapon squads and 2 company commanders in a vanguard detachment to screen my gunline and charge forward to get some early thinning anf kills on the mobs. What do you all think or have any other screening tactics.