Wellll, sorta. Yes, 2,000 actually in game, but since Huge unit setting represents 1/10 scale, I always think of them in terms of represented value. Makes everything seem more realistic and epic.
Oh but um, pardon my slander of your wonderful people though, as an Arverni player.
Have you battled against Rome much or at all? Wondering how a player might fare against their largely superior troops. Don't count them out yet though! I've seen them look like they're on the brink of collapse more than once in my campaign, and they've come back stronger and meaner. Much like real life! By the turn you're already at, they probably have had at least one reform and if they can recuperate in their homelands for even a little bit, they'll stand a fighting chance. Sack 'em while they're weak!