I had a few toons;
DE Necro - Qpid Stunt
Dwarf Cleric - Qwackpot Qweric
Iksar Monk - Chop Suey
Bard - Hevy Measures
Was more but cant remember them now - it was a long time ago! I think i was on my cleric when Dumak raided but have a funny feeling we grouped a lot levelling when i was on my bard or Monk with Wu and Gules.
Another tip i only learnt about last week about Crews... get a few tanks of the same nationality and type so in his case, German / Artillary, but only have one crew(preferably for the highest Tier Arty he has)! Swap the crew out between each Artillary piece gaining the x2 bonus, therefore levelling your crew up really fast.