Editing Warhammer 40,000/5th Edition Tactics/Imperial Guard (section)

===Allies===
If you're still using the now-old Codex: Witch Hunters or Codex: Daemonhunters and you want to use allies, good god do so. For the price of a fully-kitted Veteran squad, you can have an entire 10-woman Sisters squad with all their needed gear PLUS the cost of a Rhino for them. Suddenly your army has 3+ saves and BS4 Bolters to backup your lasgun spam and 5+ armor save.

If you're lacking punch for some reason, consider using the old Allies rules. Sisters and Grey Knights can introduce a world of hurt most people don't expect from a Guard army. This writer knows from experience that Valkyrie-borne Sisters plus a Canoness make a superior, cheaper alternative to expensive Veterans or Stormtroopers doing the same thing.