Very interesting thing about weapon upgrades...

[Mister Analyst]

I thought you need MW for backhand blow and blitz? Other doctrines have as well?

@EliteWehrmacht ,

Yes, other doctrine trees can unlock the Blitz and Backhand Blow tactics. Reference https://hoi4.paradoxwikis.com/Land_doctrine#List_of_all_doctrines.

• Mobile Warfare doctrine tree
  • Backhand Blow tactic
    • Unlocked by Backhand Blow doctrine (9th doctrine from top, RH Modern Blitzkrieg branch)
  • Blitz tactic
    • Unlocked by Armored Spearhead doctrine (4th doctrine from top, RH Blitzkrieg branch)
    • Unlocked by Mechanized Offensive doctrine (6th doctrine from top, LH Mobile Infantry branch)
• Mass Assault doctrine tree
  • Backhand Blow tactic
    • Unlocked by Continuous Offensive doctrine (10th doctrine from top, LH Deep Battle branch)
  • Blitz tactic
    • Unlocked by Deep Operations doctrine (5th doctrine from top, LH Deep Battle branch)
• Superior Firepower doctrine tree
  • Blitz tactic
    • Unlocked by Mechanized Offensive doctrine (6th doctrine from top)
• Grand Battleplan doctrine tree
  • Blitz tactic
    • Unlocked by Armored Operations doctrine (6th doctrine from top, RH Infiltration branch)
    • Unlocked by Mechanized Offensive doctrine (5th doctrine from top, LH Assault branch)