Attack/Defense Types

Is there any way to add additional attack and defense types? For the map I wish to make, I need more than they have available. Are there any type of workarounds?

not without making your own damage system.

Lame... Ok.

Is there an ability that increases damage vs. some armor types? I might be able to hide an ability on certain units to effectively create another damage type.

I noticed that demolish will allow me to increase damage vs. heroes, which is exactly what I want. However, the default damage multiplier is 0 against heroes and 2 versus buildings. If it was really a multiplier, it would cause the unit to deal 0 damage to heroes. Anyone know how this really works?

The field is most likely fucked up. 0 probably means "Deal 100%" damage, but 2 is probably "Deal 200% damage".

Or it's an additive bonus. Damage + 0% vs Heroes; Damage + 200% vs Structures.

As far as I know, the tooltip for Demolish says it deals 200% damage to buildings, not 300%.

Ah, demolish unit's allowed says only buildings. Then the standard multiplier of 200% is applied to all units (which is only buildings).