Originally Posted by
MaltonNecromancer
The guard codex has SO many unit types and configurations, seriously - how many more options do you need? Every single IG force and combat style can be adequately represented by the rules in that codex. The only reason you don't hear about it is because the" internet metagame" on BoLS is primarily geared to Mech / Vet / Melta.
You want to do a new type of guard army? Brilliant - just pick some units other people don't use and go to town. Do a Savlar Chem dogs army - Penal Legionnaires and Stormtroopers. Have an all-Ogryn army, or a Psyker-heavy list. Go against the grain of what you hear about online - because that's all a new codex would give you, ultimately.
Even the Krieg army list isn't that radically different - just lots more cannons and no Chimerae.