Requesting some simple coding work.

[Deolrin]

Hello, everyone!
In preparation for the release of the Scars of Conflict BETA, I found myself in need of a simple upgrade that was not yet implemented in the game. Normally this wouldn't be so bad, but the problem is that Linaze, our coder, is too busy to assist and will be busy for quite a while now(several months, at least). So, what I am looking for is for someone to help me out with an upgrade that makes Catapults do extra damage(preferably in percentage) against ships. I have only 4 ship units, so either manually assigning them to be "damageable" or using a category is fine for me.
The whole map is currently coded in vJass, and the Jass New Gen Pack was used for it's creation, and therefore it is preferable that if you decide to help out, you would know vJass. However, I suppose that any form of coding will be fine. I do not actually know much about this whole ordeal, but I hope you guys can help me out. I will make certain to credit you in the map.
What I had in mind is that someone who is willing to aid will create the necessary trigger, and post a testmap(or just the raw code) for me to test out. I will check if everything is working fine, and if it is, I'll thank whoever helped out and add them to the credits.

Thanks in advance to anyone who would decide to help. ^^

 

[Adiktuz]

does the map has a damage detection system or better yet a custom damage dealing system?

 

[The Reborn Devil]

I have fixed it for poor Deo :>

@Mag (who I presume will read this), your solution didn't work. It had several issues. Among them that it would attempt (yes, attempt, because it didn't even work) to add extra damage even without the upgrade.