Slitherine Announces Gladius - Relics of War

I have tried a few different approaches with the Imperial Guard, none of them have worked: (playing on medium difficu!ty.) push forward and defend key locations or play more defensively in connect my cities up in a sprawl, emphasize infantry or emphasize tanks, Heroes or no Heroes Etc. Typically I make it to turn 60 or 70 okay, losing very few troops if any , and then one faction shows up with a much much bigger Army than mine. Loyalty seems to keep me from expanding past three cities, and when I go tank heavy I really need a lot of ore. Does everyone have a general outline or guide with benchmarks on how many cities and troops to have by various turns?