Lets see all of my tanks maxed out as I can get them and several of my crews have mastered every perk there is but here's my list.
American tanks
T1, M2 light, T18, T2 light, T2 medium, M3 Stuart, T82, M2 medium, M5 Stuart, M8A1, M3 Lee, T67, M4, T1 heavy, Hellcat, Jackson, M4A3E8, Fury, M4A3E2, M6, T25/2, T25AT, T20, T29, T28 Protector, T32, M103.
British tanks
Medium I, Cruiser III, UC 2-pdr, Medium II, Cruiser IV, Medium III, Covenantor, Matilda, Crusader, Churchill I, Cromwell, Churchill GC, Churchill VII, TOG II, Comet, Black Prince, Centurion I, Caernarvon.
German tanks
LTracktor, G.Pz.Mk.VI, Pz.Jag.I, Pz.35(t), Pz.II, Bison, Pz.S35, Pz.38(t), T-15, Pz.IIIa, Pz.IIg, Hetzer, Pz.38nA, VK 20.01D, Luchs, Stug III G, T25, Pz.IV, Leopard, Jg.Pz.IV, VK 30.01H, VK 28.01, JPanther, E25, Tiger, JPanther II, Ferdinand, Tiger II, Lowe, Jadgtiger, E75, E100
Soviet tanks
MS-1, At-1, BT-2, T-26, SU-18, SU-76, BT-7, T-45, SU-26, SU-85B, T-28, SU-5, SU-85, KV-1, SU-122A, SU-100, KV-1S, KV-2, SU-8, SU-152, IS, IS-3, IS-8
I've never bothered with artillery or French, Chinese, or Jap tanks figure I have PLENTY to start my own war with!
I've been playing since it came out on ZBOX 360 like 2 or so years ago. Believe it or not I have more fun with the little tanks then the big ones.
God help me if my wife ever finds out how much I've spent on this stupid game!
I has a BUNCH of tanks too!