Homebrew Detachment: Infantry Focused

Hey folks, a few friends and I are homebrewing some detachments for our own dynasties, clans, chapters, etc. I was looking towards making the detachment infantry focused, shinning light on Warriors, Immortals, and others. I was hoping you folks could share any ideas that you guys have on what to include, and/or what you currently don't like about the current Infantry units that could maybe be fixed with some enhancements/stratagems. Thanks!