The Germani arrive on the Roman scene with a bang about 113 BC, when the Cimbri and Teutones storm through central Europe into Gaul and Italy. I don't think the Sweboz are named until Caears day, is that right? Their heirs end up invading Spain during the Völkerwanderung.

To represent this in EB terms, the Sweboz player might (as suggested above) conquer the two provinces to their north, maybe add scandinavia, sit still for 150 years (=600 turns!), then conduct a monster raid toward the Scordisci city, sack it, sack Noricum, sack several alpine provinces, tackle the Averni, raid into Iberia and then descend on Liguria.

This would be a great challenge, first to survive the northward expansion of Rome which tends to happen well before its historical Augustan time-frame, then to resist holding one's conquests and continue peregrinating.

Maybe an historically defensible course of action would be to give yourself a plausible set of RolePlay guidelines. The devs built some hints into the game mechanics. First up you could "unite the tribes" one province at a time, then send out occasional raiding armies to weaken neighbours. Maybe half stacks could be sent out on kamikaze missions, attack settlements and sack them, then move on (abandoning citries for recapture/revolt) until the stack is eliminated to represent intermitent booty raids.

Once you hit 190 BC you could expand into some type 2 areas, entering the Germano-Celtic phase posited by the reformed unit-mix. You wouldn't need to conquer the entire alps, just one of the "iron" cities needed to activate the reforms.

That done you could send out some serious incursions (like the famous Cimbri one), perhaps fullstacks this time, including some reformed units? They could head out on a sackfest if you like, but Roman historians felt they were looking for a new home: when would they find it? Remember they heade to Iberia (later a Suebi target).

Each time the wandering stack take a certain key city role a die, and if you get a 1 they settle down and you can develop the city as a type III or VI govt. The Cimbri wandered down to the Balkans, through the alps, into Gaul, into Iberia, into Italy, so maybe pick a juicy city in each area, and send them to capture them one at a time until their number comes up. Alternately you could sack every city in a clockwise arc starting with the Scordisci. If you could put a FM of the right ethnicity in charge of each stack that'd be nice RPing.

Of course you'd be hoping to suceed in building your new tribal land, but the engine makes it hard to survive as pure Sweboz and they'd rapidly become a celtic or iberian culture city, with a Vollorix and regional troops defending them.

In my recent Sweboz campaign (crashed irrevocably about 210 BC, 2 cities from victory) I RP'd "allied kingdoms", with a local ruler and appropriate regional troops (eg in Massilia I was going to choose if the city was Celtic or Greek dominated, then recruit that type almost exclusively). So I had a modest Sweboz core kingdom minding its own business, and then a bunch of satellite states engaged in regional conflicts.

There were Balts getting walloped by huge rebel stacks in a drive eatward (a really excellent mod feature, the renewing reb uberstacks), alpine Celts fighting Rome and Averni, Danube Celts fighting Rome and Epiros, rather scrawny pre-reform Belgae fighting Aedui, all with the help of the odd Sweboz royal army if they were under too much pressure. It was quite a satisfying little game.