[Question] Attack types... Missile Line?

Yeah, what's the "Line" (the others being missile and artillery and normal or none) do?

It means that the attack will "strike though initial targets and damage those behind"

used in the nightelf ballista :) take a look at how it works

does the ballista/glaive thrower actually work? i no u need the upgrade but as far as i can tell all it does it let u kill trees.

A note about Missile Line though: The damage can't take targets (at least I don't think so), so it will hurt everyone: Allies, enemies, neutrals, buildings, etc.

So, basically what it does is it shoots at the target and any unfortunate units in the path of the missile also get injured?

You get at least some control of line targets through Area of Effect Targets. I don't think you can make it just affect allies, but you can definately get it to just affect enemies and to not affect structures.
It seems you can't make it line-target trees; but allies, enemies, neutral, structure etc. are all fully configurable.

Ah, kay. One last question...

Is this compatible with frost and/or slow poison?

No

Well, frost is splash friendly so I thought it might be the same. Poison could've had a new start.

Oh wells,
+Rep to everyone who helped.

erm, jsut so u know, it hits the target and continues throgh, not hits all units in the line =\ not sure if thats wat u meant lol

The difference between a missile and missile line projectile isn't just about the fact that the projectile is following or not the target ?
The line just attack at target location.