Aedui or Arverni

[Grade_A_Beef]

The Sweboz are very easy to deal with as a Celtic faction. If you don't want to do bridge battles all the time (the Rhine is a very useful border, albeit with a lot of crossings), just built stone walls (barb style) at your border cities and garrison 6-8 bataroas there.

9 times out of ten their men will get slaughtered on the walls by Celtic longswords, with the other 10% being the rare gate breach.

After like 20 years of this I have multiple silver chevroned Batacorii, Milnaht, and Bataroas. Some even have gold chevrons. As a drawback however those border cities aren't getting infastructure anytime soon....