Since there's been some discussion about it I decided to try to see why the steam tank performs so well in melee combat and if it's balanced.
TL;DR: It's the extra infinite-ammo gunners and no minimum range on the main gun. It's not balanced.
First, some comparisons: I put royal hippogriff knights (2200 value) up against some enemies of similar value to the steam tank (2400). All landed opponents I first landed before charging, to give them a chance to get their own charge.
Taurox with all items/abilities (2350 value): Lost, did about 1500 value to the RHKs.
K'daii Destroyer (2200 value): Lost, did about 1400 value to the RHKs.
Exalted Bloodthirster with no items/abilities (2300 value):


