I've only experianced the Gaesatae once so far, when I first tried EB, first attempt as Casse..

I outnumbered them and it was the last settlement left as the Arverni.

They just slaughtered me, the units they were fighting ran, then the next unit next to them ran, then the next, a chain reaction of routing :( So a crushing loss.

Over 2000 dead :| in a roughly 3000 army V one much smaller!