sunderer is pretty tanky having duel helbard sunderer + the ability to act as a spawn point would make it one hell of a battlefotress that cheaper then a tank and can duel and probably beat any tank. i dont think it a good idea. buttttttt double canister sunderer with shield defusers runing into enemy infantry sounds hilariously funny for the sunderer and a nightmare for the TR/Vanu
Some nightmare scenario's: Double-Saron Sunderer. The Sauron Bus. Double Vulcan Sunderer. Dakka bus. Double Mjolnir Sunderer. Hammer bus. Double Halberd Sunderer.
against infantry i think double marauder would probably be best, they're like better Furys, cannister just isn't very scary imho, 2 shot kill (if you're lucky), thats just like a standard shotgun on a tank XD